15553242355 has 32 divisors (see below), whose sum is σ = 21596802048. Its totient is φ = 10532592000.

The previous prime is 15553242347. The next prime is 15553242361. The reversal of 15553242355 is 55324235551.

It is not a de Polignac number, because 15553242355 - 2³ = 15553242347 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 905800 + ... + 922810.

It is an arithmetic number, because the mean of its divisors is an integer number (674900064).

Almost surely, 2^15553242355 is an apocalyptic number.

15553242355 is a deficient number, since it is larger than the sum of its proper divisors (6043559693).

15553242355 is a wasteful number, since it uses less digits than its factorization.

15553242355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17347.

The product of its digits is 450000, while the sum is 40.

The spelling of 15553242355 in words is "fifteen billion, five hundred fifty-three million, two hundred forty-two thousand, three hundred fifty-five".