15212051056 has 10 divisors (see below), whose sum is σ = 29473348952. Its totient is φ = 7606025520.

The previous prime is 15212051051. The next prime is 15212051077. The reversal of 15212051056 is 65015021251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15212051051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475376580 + ... + 475376611.

Almost surely, 2^15212051056 is an apocalyptic number.

15212051056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15212051056 is a deficient number, since it is larger than the sum of its proper divisors (14261297896).

15212051056 is an equidigital number, since it uses as much as digits as its factorization.

15212051056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950753199 (or 950753193 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 15212051056 in words is "fifteen billion, two hundred twelve million, fifty-one thousand, fifty-six".