25964520 has 32 divisors (see below), whose sum is σ = 77893920. Its totient is φ = 6923840.

The previous prime is 25964509. The next prime is 25964531. The reversal of 25964520 is 2546952.

It is an interprime number because it is at equal distance from previous prime (25964509) and next prime (25964531).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 108066 + ... + 108305.

It is an arithmetic number, because the mean of its divisors is an integer number (2434185).

Almost surely, 2^25964520 is an apocalyptic number.

25964520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25964520 is an abundant number, since it is smaller than the sum of its proper divisors (51929400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25964520 is a wasteful number, since it uses less digits than its factorization.

25964520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216385 (or 216381 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 25964520 is about 5095.5392256365. The cubic root of 25964520 is about 296.1147899073.

The spelling of 25964520 in words is "twenty-five million, nine hundred sixty-four thousand, five hundred twenty".