25720704 has 96 divisors (see below), whose sum is σ = 75184200. Its totient is φ = 8438784.

The previous prime is 25720691. The next prime is 25720727. The reversal of 25720704 is 40702752.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×25720704² = 1323109228511232, which contains 22 as substring.

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, 95482 + ... + 95750.

Almost surely, 2^25720704 is an apocalyptic number.

25720704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25720704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37592100).

25720704 is an abundant number, since it is smaller than the sum of its proper divisors (49463496).

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

25720704 is a wasteful number, since it uses less digits than its factorization.

25720704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 25720704 is about 5071.5583403920. The cubic root of 25720704 is about 295.1849993479.

The spelling of 25720704 in words is "twenty-five million, seven hundred twenty thousand, seven hundred four".