55156253163 has 24 divisors (see below), whose sum is σ = 83442659328. Its totient is φ = 32349702000.

The previous prime is 55156253137. The next prime is 55156253171. The reversal of 55156253163 is 36135265155.

It is not a de Polignac number, because 55156253163 - 2¹⁰ = 55156252139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55156253183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2439483 + ... + 2461988.

It is an arithmetic number, because the mean of its divisors is an integer number (3476777472).

Almost surely, 2^55156253163 is an apocalyptic number.

55156253163 is a deficient number, since it is larger than the sum of its proper divisors (28286406165).

55156253163 is a wasteful number, since it uses less digits than its factorization.

55156253163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901527 (or 4901516 counting only the distinct ones).

The product of its digits is 405000, while the sum is 42.

The spelling of 55156253163 in words is "fifty-five billion, one hundred fifty-six million, two hundred fifty-three thousand, one hundred sixty-three".