25715960 has 16 divisors (see below), whose sum is σ = 57861000. Its totient is φ = 10286368.

The previous prime is 25715959. The next prime is 25715969. The reversal of 25715960 is 6951752.

It is a super-2 number, since 2×25715960² = 1322621197443200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25715960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25715969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321410 + ... + 321489.

Almost surely, 2^25715960 is an apocalyptic number.

25715960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25715960 is an abundant number, since it is smaller than the sum of its proper divisors (32145040).

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

25715960 is a wasteful number, since it uses less digits than its factorization.

25715960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642910 (or 642906 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 25715960 is about 5071.0906124817. The cubic root of 25715960 is about 295.1668499777.

The spelling of 25715960 in words is "twenty-five million, seven hundred fifteen thousand, nine hundred sixty".