2656252251 has 16 divisors (see below), whose sum is σ = 4009439520. Its totient is φ = 1737421920.

The previous prime is 2656252243. The next prime is 2656252289. The reversal of 2656252251 is 1522526562.

2656252251 is a `hidden beast` number, since 2 + 6 + 5 + 625 + 2 + 25 + 1 = 666.

It is not a de Polignac number, because 2656252251 - 2³ = 2656252243 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2656252211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926680 + ... + 929541.

It is an arithmetic number, because the mean of its divisors is an integer number (250589970).

Almost surely, 2^2656252251 is an apocalyptic number.

2656252251 is a deficient number, since it is larger than the sum of its proper divisors (1353187269).

2656252251 is a wasteful number, since it uses less digits than its factorization.

2656252251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856283 (or 1856277 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 2656252251 is about 51538.8421581238. The cubic root of 2656252251 is about 1384.9149553970.

The spelling of 2656252251 in words is "two billion, six hundred fifty-six million, two hundred fifty-two thousand, two hundred fifty-one".