12257825771 has 4 divisors (see below), whose sum is σ = 12315919944. Its totient is φ = 12199731600.

The previous prime is 12257825717. The next prime is 12257825777. The reversal of 12257825771 is 17752875221.

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 12257825771 - 2²⁶ = 12190716907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12257825777) 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, 29046770 + ... + 29047191.

It is an arithmetic number, because the mean of its divisors is an integer number (3078979986).

Almost surely, 2^12257825771 is an apocalyptic number.

12257825771 is a deficient number, since it is larger than the sum of its proper divisors (58094173).

12257825771 is an equidigital number, since it uses as much as digits as its factorization.

12257825771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58094172.

The product of its digits is 548800, while the sum is 47.

The spelling of 12257825771 in words is "twelve billion, two hundred fifty-seven million, eight hundred twenty-five thousand, seven hundred seventy-one".