55554538458 has 16 divisors (see below), whose sum is σ = 112147480800. Its totient is φ = 18345112176.

The previous prime is 55554538447. The next prime is 55554538477. The reversal of 55554538458 is 85483545555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55554538398 and 55554538407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43266133 + ... + 43267416.

It is an arithmetic number, because the mean of its divisors is an integer number (7009217550).

Almost surely, 2^55554538458 is an apocalyptic number.

55554538458 is an abundant number, since it is smaller than the sum of its proper divisors (56592942342).

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

55554538458 is a wasteful number, since it uses less digits than its factorization.

55554538458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86533661.

The product of its digits is 48000000, while the sum is 57.

The spelling of 55554538458 in words is "fifty-five billion, five hundred fifty-four million, five hundred thirty-eight thousand, four hundred fifty-eight".