25601264 has 20 divisors (see below), whose sum is σ = 53418456. Its totient is φ = 11815872.

The previous prime is 25601207. The next prime is 25601291. The reversal of 25601264 is 46210652.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61334 + ... + 61749.

Almost surely, 2^25601264 is an apocalyptic number.

It is an amenable number.

25601264 is an abundant number, since it is smaller than the sum of its proper divisors (27817192).

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

25601264 is a wasteful number, since it uses less digits than its factorization.

25601264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123104 (or 123098 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25601264 is about 5059.7691646952. The cubic root of 25601264 is about 294.7273704529.

The spelling of 25601264 in words is "twenty-five million, six hundred one thousand, two hundred sixty-four".