12556053 has 24 divisors (see below), whose sum is σ = 18983328. Its totient is φ = 8293104.

The previous prime is 12556039. The next prime is 12556067. The reversal of 12556053 is 35065521.

12556053 is a `hidden beast` number, since 1 + 2 + 55 + 605 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (12556039) and next prime (12556067).

It is not a de Polignac number, because 12556053 - 2⁶ = 12555989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39451 + ... + 39767.

It is an arithmetic number, because the mean of its divisors is an integer number (790972).

Almost surely, 2^12556053 is an apocalyptic number.

It is an amenable number.

12556053 is a deficient number, since it is larger than the sum of its proper divisors (6427275).

12556053 is an equidigital number, since it uses as much as digits as its factorization.

12556053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 12556053 is about 3543.4521303384. The cubic root of 12556053 is about 232.4258244128.

The spelling of 12556053 in words is "twelve million, five hundred fifty-six thousand, fifty-three".