25719264 has 36 divisors (see below), whose sum is σ = 73139976. Its totient is φ = 8572992.

The previous prime is 25719241. The next prime is 25719271. The reversal of 25719264 is 46291752.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×25719264² = 1322961081403392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44364 + ... + 44939.

It is an arithmetic number, because the mean of its divisors is an integer number (2031666).

Almost surely, 2^25719264 is an apocalyptic number.

25719264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25719264 is an abundant number, since it is smaller than the sum of its proper divisors (47420712).

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

25719264 is a wasteful number, since it uses less digits than its factorization.

25719264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89319 (or 89308 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 25719264 is about 5071.4163702067. The cubic root of 25719264 is about 295.1794905001.

The spelling of 25719264 in words is "twenty-five million, seven hundred nineteen thousand, two hundred sixty-four".