25680704 has 84 divisors (see below), whose sum is σ = 62544960. Its totient is φ = 10402560.

The previous prime is 25680691. The next prime is 25680731. The reversal of 25680704 is 40708652.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59369 + ... + 59799.

Almost surely, 2^25680704 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 25680704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31272480).

25680704 is an abundant number, since it is smaller than the sum of its proper divisors (36864256).

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

25680704 is a wasteful number, since it uses less digits than its factorization.

25680704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 25680704 is about 5067.6132449113. The cubic root of 25680704 is about 295.0318992605.

The spelling of 25680704 in words is "twenty-five million, six hundred eighty thousand, seven hundred four".