12566051 has 12 divisors (see below), whose sum is σ = 13203288. Its totient is φ = 11956032.

The previous prime is 12566041. The next prime is 12566053. The reversal of 12566051 is 15066521.

It is a de Polignac number, because none of the positive numbers 2^k-12566051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12566051.

It is not an unprimeable number, because it can be changed into a prime (12566053) 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, 91655 + ... + 91791.

It is an arithmetic number, because the mean of its divisors is an integer number (1100274).

Almost surely, 2^12566051 is an apocalyptic number.

12566051 is a deficient number, since it is larger than the sum of its proper divisors (637237).

12566051 is an equidigital number, since it uses as much as digits as its factorization.

12566051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 12566051 is about 3544.8626207513. The cubic root of 12566051 is about 232.4874992315.

The spelling of 12566051 in words is "twelve million, five hundred sixty-six thousand, fifty-one".