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25324212001345 = 519173732641553
BaseRepresentation
bin1011100001000010000001…
…01010010001101001000001
310022122222012212122202200121
411300201000222101221001
511304402441233020340
6125505440555020241
75222420403230545
oct560410052215101
9108588185582617
1025324212001345
118083a35523864
122a1000343a681
1311190a839c9ca
146379ac5a9a25
152ddb1a68294a
hex170840a91a41

25324212001345 has 8 divisors (see below), whose sum is σ = 30389081755176. Its totient is φ = 20259351365376.

The previous prime is 25324212001339. The next prime is 25324212001349. The reversal of 25324212001345 is 54310021242352.

It can be written as a sum of positive squares in 4 ways, for example, as 240311726656 + 25083900274689 = 490216^2 + 5008383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25324212001345 - 233 = 25315622066753 is a prime.

It is a super-2 number, since 2×253242120013452 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25324212001345.

It is not an unprimeable number, because it can be changed into a prime (25324212001349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8266089 + ... + 10907641.

It is an arithmetic number, because the mean of its divisors is an integer number (3798635219397).

Almost surely, 225324212001345 is an apocalyptic number.

It is an amenable number.

25324212001345 is a deficient number, since it is larger than the sum of its proper divisors (5064869753831).

25324212001345 is a wasteful number, since it uses less digits than its factorization.

25324212001345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558931.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 25324212001345 its reverse (54310021242352), we get a palindrome (79634233243697).

The spelling of 25324212001345 in words is "twenty-five trillion, three hundred twenty-four billion, two hundred twelve million, one thousand, three hundred forty-five".

Divisors: 1 5 1917373 2641553 9586865 13207765 5064842400269 25324212001345