15055531051 has 4 divisors (see below), whose sum is σ = 16424215704. Its totient is φ = 13686846400.

The previous prime is 15055531037. The next prime is 15055531079. The reversal of 15055531051 is 15013555051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15013555051 = 11 ⋅1364868641.

It is a cyclic number.

It is not a de Polignac number, because 15055531051 - 2¹¹ = 15055529003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15055531091) 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, 684342310 + ... + 684342331.

It is an arithmetic number, because the mean of its divisors is an integer number (4106053926).

Almost surely, 2^15055531051 is an apocalyptic number.

15055531051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15055531051 is a deficient number, since it is larger than the sum of its proper divisors (1368684653).

15055531051 is a wasteful number, since it uses less digits than its factorization.

15055531051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368684652.

The product of its (nonzero) digits is 9375, while the sum is 31.

The spelling of 15055531051 in words is "fifteen billion, fifty-five million, five hundred thirty-one thousand, fifty-one".