12557008331 has 8 divisors (see below), whose sum is σ = 14523769344. Its totient is φ = 10633473000.

The previous prime is 12557008313. The next prime is 12557008337. The reversal of 12557008331 is 13380075521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12557008331 is a prime.

It is a super-2 number, since 2×12557008331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12557008291 and 12557008300.

It is not an unprimeable number, because it can be changed into a prime (12557008337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10805795 + ... + 10806956.

It is an arithmetic number, because the mean of its divisors is an integer number (1815471168).

Almost surely, 2^12557008331 is an apocalyptic number.

12557008331 is a deficient number, since it is larger than the sum of its proper divisors (1966761013).

12557008331 is an equidigital number, since it uses as much as digits as its factorization.

12557008331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21612841.

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 12557008331 in words is "twelve billion, five hundred fifty-seven million, eight thousand, three hundred thirty-one".