55531404135 has 12 divisors (see below), whose sum is σ = 96254433912. Its totient is φ = 29616748848.

The previous prime is 55531404113. The next prime is 55531404151. The reversal of 55531404135 is 53140413555.

55531404135 is a `hidden beast` number, since 55 + 53 + 140 + 413 + 5 = 666.

It is not a de Polignac number, because 55531404135 - 2⁷ = 55531404007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55531404135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 617015557 + ... + 617015646.

It is an arithmetic number, because the mean of its divisors is an integer number (8021202826).

Almost surely, 2^55531404135 is an apocalyptic number.

55531404135 is a deficient number, since it is larger than the sum of its proper divisors (40723029777).

55531404135 is a wasteful number, since it uses less digits than its factorization.

55531404135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234031214 (or 1234031211 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 55531404135 in words is "fifty-five billion, five hundred thirty-one million, four hundred four thousand, one hundred thirty-five".