54189945558 has 48 divisors (see below), whose sum is σ = 134280300960. Its totient is φ = 15471802368.

The previous prime is 54189945541. The next prime is 54189945583. The reversal of 54189945558 is 85554998145.

54189945558 is a `hidden beast` number, since 5 + 41 + 8 + 99 + 455 + 58 = 666.

It is a super-3 number, since 3×54189945558³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 54189945495 and 54189945504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24916 + ... + 330152.

It is an arithmetic number, because the mean of its divisors is an integer number (2797506270).

Almost surely, 2^54189945558 is an apocalyptic number.

54189945558 is an abundant number, since it is smaller than the sum of its proper divisors (80090355402).

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

54189945558 is a wasteful number, since it uses less digits than its factorization.

54189945558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306661 (or 306658 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 63.

The spelling of 54189945558 in words is "fifty-four billion, one hundred eighty-nine million, nine hundred forty-five thousand, five hundred fifty-eight".