25265560 has 32 divisors (see below), whose sum is σ = 57008160. Its totient is φ = 10077696.

The previous prime is 25265549. The next prime is 25265567. The reversal of 25265560 is 6556252.

It is a super-2 number, since 2×25265560² = 1276697044227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25265567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18832 + ... + 20128.

It is an arithmetic number, because the mean of its divisors is an integer number (1781505).

Almost surely, 2^25265560 is an apocalyptic number.

25265560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25265560 is an abundant number, since it is smaller than the sum of its proper divisors (31742600).

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

25265560 is a wasteful number, since it uses less digits than its factorization.

25265560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795 (or 1791 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 25265560 is about 5026.4858499751. The cubic root of 25265560 is about 293.4334655854.

The spelling of 25265560 in words is "twenty-five million, two hundred sixty-five thousand, five hundred sixty".