2251163152523 has 4 divisors (see below), whose sum is σ = 2257040863488. Its totient is φ = 2245285441560.

The previous prime is 2251163152501. The next prime is 2251163152529. The reversal of 2251163152523 is 3252513611522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2251163152523 - 2²⁶ = 2251096043659 is a prime.

It is a super-2 number, since 2×2251163152523² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251163152529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2938854908 + ... + 2938855673.

It is an arithmetic number, because the mean of its divisors is an integer number (564260215872).

Almost surely, 2^{2251163152523} is an apocalyptic number.

2251163152523 is a deficient number, since it is larger than the sum of its proper divisors (5877710965).

2251163152523 is an equidigital number, since it uses as much as digits as its factorization.

2251163152523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877710964.

The product of its digits is 108000, while the sum is 38.

The spelling of 2251163152523 in words is "two trillion, two hundred fifty-one billion, one hundred sixty-three million, one hundred fifty-two thousand, five hundred twenty-three".