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25052553 = 3211812357
BaseRepresentation
bin101111110010…
…0010110001001
31202010210122100
41133210112021
522403140203
62252544013
7422641341
oct137442611
952123570
1025052553
1113161399
128482009
1352620c6
143481d21
1522ecea3
hex17e4589

25052553 has 12 divisors (see below), whose sum is σ = 36233028. Its totient is φ = 16680480.

The previous prime is 25052539. The next prime is 25052567. The reversal of 25052553 is 35525052.

It is an interprime number because it is at equal distance from previous prime (25052539) and next prime (25052567).

It can be written as a sum of positive squares in 2 ways, for example, as 14379264 + 10673289 = 3792^2 + 3267^2 .

It is not a de Polignac number, because 25052553 - 24 = 25052537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25052513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9451 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (3019419).

Almost surely, 225052553 is an apocalyptic number.

It is an amenable number.

25052553 is a deficient number, since it is larger than the sum of its proper divisors (11180475).

25052553 is a wasteful number, since it uses less digits than its factorization.

25052553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544 (or 3541 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 25052553 is about 5005.2525410812. The cubic root of 25052553 is about 292.6065182947.

The spelling of 25052553 in words is "twenty-five million, fifty-two thousand, five hundred fifty-three".

Divisors: 1 3 9 1181 2357 3543 7071 10629 21213 2783617 8350851 25052553