55155231135 has 48 divisors (see below), whose sum is σ = 97162490880. Its totient is φ = 28937304000.

The previous prime is 55155231133. The next prime is 55155231139. The reversal of 55155231135 is 53113255155.

55155231135 is a `hidden beast` number, since 5 + 5 + 15 + 523 + 113 + 5 = 666.

55155231135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55155231135 - 2¹ = 55155231133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55155231135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55155231133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2252086 + ... + 2276444.

It is an arithmetic number, because the mean of its divisors is an integer number (2024218560).

Almost surely, 2^55155231135 is an apocalyptic number.

55155231135 is a deficient number, since it is larger than the sum of its proper divisors (42007259745).

55155231135 is a wasteful number, since it uses less digits than its factorization.

55155231135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25188 (or 25185 counting only the distinct ones).

The product of its digits is 56250, while the sum is 36.

The spelling of 55155231135 in words is "fifty-five billion, one hundred fifty-five million, two hundred thirty-one thousand, one hundred thirty-five".