55131153204 has 36 divisors (see below), whose sum is σ = 136651505984. Its totient is φ = 17296046976.

The previous prime is 55131153169. The next prime is 55131153223. The reversal of 55131153204 is 40235113155.

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, 7945084 + ... + 7952019.

Almost surely, 2^55131153204 is an apocalyptic number.

It is an amenable number.

55131153204 is an abundant number, since it is smaller than the sum of its proper divisors (81520352780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55131153204 is a wasteful number, since it uses less digits than its factorization.

55131153204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15897144 (or 15897125 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 55131153204 its reverse (40235113155), we get a palindrome (95366266359).

It can be divided in two parts, 55131 and 153204, that added together give a triangular number (208335 = T₆₄₅).

The spelling of 55131153204 in words is "fifty-five billion, one hundred thirty-one million, one hundred fifty-three thousand, two hundred four".