25964736 has 56 divisors (see below), whose sum is σ = 78516480. Its totient is φ = 7418112.

The previous prime is 25964717. The next prime is 25964737. The reversal of 25964736 is 63746952.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25964737) 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, 8316 + ... + 11003.

It is an arithmetic number, because the mean of its divisors is an integer number (1402080).

Almost surely, 2^25964736 is an apocalyptic number.

It is an amenable number.

25964736 is an abundant number, since it is smaller than the sum of its proper divisors (52551744).

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

25964736 is a wasteful number, since it uses less digits than its factorization.

25964736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19341 (or 19331 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 25964736 is about 5095.5604206014. The cubic root of 25964736 is about 296.1156110358.

The spelling of 25964736 in words is "twenty-five million, nine hundred sixty-four thousand, seven hundred thirty-six".