15155530551 has 48 divisors (see below), whose sum is σ = 25333072128. Its totient is φ = 8551872000.

The previous prime is 15155530531. The next prime is 15155530591. The reversal of 15155530551 is 15503555151.

15155530551 is a `hidden beast` number, since 1 + 5 + 1 + 55 + 53 + 0 + 551 = 666.

It is not a de Polignac number, because 15155530551 - 2²⁹ = 14618659639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15155530501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2997976 + ... + 3003026.

It is an arithmetic number, because the mean of its divisors is an integer number (527772336).

Almost surely, 2^15155530551 is an apocalyptic number.

15155530551 is a deficient number, since it is larger than the sum of its proper divisors (10177541577).

15155530551 is a wasteful number, since it uses less digits than its factorization.

15155530551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652 (or 5649 counting only the distinct ones).

The product of its (nonzero) digits is 46875, while the sum is 36.

It can be divided in two parts, 151555 and 30551, that added together give a triangular number (182106 = T₆₀₃).

The spelling of 15155530551 in words is "fifteen billion, one hundred fifty-five million, five hundred thirty thousand, five hundred fifty-one".