12565320 has 32 divisors (see below), whose sum is σ = 37696320. Its totient is φ = 3350720.

The previous prime is 12565307. The next prime is 12565339. The reversal of 12565320 is 2356521.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52236 + ... + 52475.

It is an arithmetic number, because the mean of its divisors is an integer number (1178010).

Almost surely, 2^12565320 is an apocalyptic number.

12565320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12565320 is an abundant number, since it is smaller than the sum of its proper divisors (25131000).

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

12565320 is a wasteful number, since it uses less digits than its factorization.

12565320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104725 (or 104721 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 12565320 is about 3544.7595122942. The cubic root of 12565320 is about 232.4829910091.

The spelling of 12565320 in words is "twelve million, five hundred sixty-five thousand, three hundred twenty".