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25064623 = 731312621
BaseRepresentation
bin101111110011…
…1010010101111
31202011102012101
41133213102233
522404031443
62253115531
7423021463
oct137472257
952142171
1025064623
111316a471
128488ba7
13526774c
1434864a3
15230184d
hex17e74af

25064623 has 8 divisors (see below), whose sum is σ = 25611696. Its totient is φ = 24523200.

The previous prime is 25064617. The next prime is 25064639. The reversal of 25064623 is 32646052.

It is a happy number.

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

It is not a de Polignac number, because 25064623 - 29 = 25064111 is a prime.

It is a super-2 number, since 2×250646232 = 1256470652264258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25064591 and 25064600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25064693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8253 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (3201462).

Almost surely, 225064623 is an apocalyptic number.

25064623 is a deficient number, since it is larger than the sum of its proper divisors (547073).

25064623 is a wasteful number, since it uses less digits than its factorization.

25064623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25064623 is about 5006.4581292567. The cubic root of 25064623 is about 292.6535021110.

The spelling of 25064623 in words is "twenty-five million, sixty-four thousand, six hundred twenty-three".

Divisors: 1 73 131 2621 9563 191333 343351 25064623