55191614004 has 48 divisors (see below), whose sum is σ = 143102581440. Its totient is φ = 18395506080.

The previous prime is 55191613921. The next prime is 55191614123. The reversal of 55191614004 is 40041619155.

55191614004 is a `hidden beast` number, since 5 + 5 + 191 + 61 + 400 + 4 = 666.

55191614004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55191614004² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55191614004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1803874 + ... + 1834214.

It is an arithmetic number, because the mean of its divisors is an integer number (2981303780).

Almost surely, 2^55191614004 is an apocalyptic number.

55191614004 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

55191614004 is an abundant number, since it is smaller than the sum of its proper divisors (87910967436).

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

55191614004 is a wasteful number, since it uses less digits than its factorization.

55191614004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47197 (or 47189 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 55191614004 in words is "fifty-five billion, one hundred ninety-one million, six hundred fourteen thousand, four".