25670272 has 64 divisors (see below), whose sum is σ = 55520640. Its totient is φ = 11776000.

The previous prime is 25670243. The next prime is 25670287. The reversal of 25670272 is 27207652.

It is a tau number, because it is divible by the number of its divisors (64).

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, 102147 + ... + 102397.

It is an arithmetic number, because the mean of its divisors is an integer number (867510).

Almost surely, 2^25670272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25670272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27760320).

25670272 is an abundant number, since it is smaller than the sum of its proper divisors (29850368).

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

25670272 is a wasteful number, since it uses less digits than its factorization.

25670272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 25670272 is about 5066.5838589724. The cubic root of 25670272 is about 294.9919446235.

The spelling of 25670272 in words is "twenty-five million, six hundred seventy thousand, two hundred seventy-two".