15155530553 has 16 divisors (see below), whose sum is σ = 15918529536. Its totient is φ = 14401379520.

The previous prime is 15155530531. The next prime is 15155530591. The reversal of 15155530553 is 35503555151.

It is a cyclic number.

It is not a de Polignac number, because 15155530553 - 2¹² = 15155526457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15155530153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7588151 + ... + 7590147.

It is an arithmetic number, because the mean of its divisors is an integer number (994908096).

Almost surely, 2^15155530553 is an apocalyptic number.

It is an amenable number.

15155530553 is a deficient number, since it is larger than the sum of its proper divisors (762998983).

15155530553 is a wasteful number, since it uses less digits than its factorization.

15155530553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024.

The product of its (nonzero) digits is 140625, while the sum is 38.

The spelling of 15155530553 in words is "fifteen billion, one hundred fifty-five million, five hundred thirty thousand, five hundred fifty-three".