12502053857 has 4 divisors (see below), whose sum is σ = 13045621440. Its totient is φ = 11958486276.

The previous prime is 12502053821. The next prime is 12502053859. The reversal of 12502053857 is 75835020521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12502053857 - 2⁸ = 12502053601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12502053857.

It is not an unprimeable number, because it can be changed into a prime (12502053859) 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, 271783757 + ... + 271783802.

It is an arithmetic number, because the mean of its divisors is an integer number (3261405360).

Almost surely, 2^12502053857 is an apocalyptic number.

It is an amenable number.

12502053857 is a deficient number, since it is larger than the sum of its proper divisors (543567583).

12502053857 is an equidigital number, since it uses as much as digits as its factorization.

12502053857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543567582.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 12502053857 in words is "twelve billion, five hundred two million, fifty-three thousand, eight hundred fifty-seven".