25563960 has 48 divisors (see below), whose sum is σ = 83084040. Its totient is φ = 6816960.

The previous prime is 25563959. The next prime is 25563961. The reversal of 25563960 is 6936552.

25563960 is a `hidden beast` number, since 2 + 5 + 563 + 96 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (25563959) and next prime (25563961).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25563961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35146 + ... + 35865.

Almost surely, 2^25563960 is an apocalyptic number.

25563960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25563960 is an abundant number, since it is smaller than the sum of its proper divisors (57520080).

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

25563960 is a wasteful number, since it uses less digits than its factorization.

25563960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71028 (or 71021 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 25563960 is about 5056.0814866851. The cubic root of 25563960 is about 294.5841502556.

The spelling of 25563960 in words is "twenty-five million, five hundred sixty-three thousand, nine hundred sixty".