25719216 has 40 divisors (see below), whose sum is σ = 66662400. Its totient is φ = 8544576.

The previous prime is 25719209. The next prime is 25719229. The reversal of 25719216 is 61291752.

It is a super-2 number, since 2×25719216² = 1322956143309312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17685 + ... + 19083.

It is an arithmetic number, because the mean of its divisors is an integer number (1666560).

Almost surely, 2^25719216 is an apocalyptic number.

It is an amenable number.

25719216 is an abundant number, since it is smaller than the sum of its proper divisors (40943184).

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

25719216 is a wasteful number, since it uses less digits than its factorization.

25719216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793 (or 1787 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 25719216 is about 5071.4116377987. The cubic root of 25719216 is about 295.1793068683.

The spelling of 25719216 in words is "twenty-five million, seven hundred nineteen thousand, two hundred sixteen".