54121171800 has 48 divisors (see below), whose sum is σ = 167775634440. Its totient is φ = 14432312320.

The previous prime is 54121171777. The next prime is 54121171837. The reversal of 54121171800 is 817112145.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 45100377 + ... + 45101576.

Almost surely, 2^54121171800 is an apocalyptic number.

54121171800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

54121171800 is an abundant number, since it is smaller than the sum of its proper divisors (113654462640).

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

54121171800 is a wasteful number, since it uses less digits than its factorization.

54121171800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90201972 (or 90201963 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 30.

Adding to 54121171800 its reverse (817112145), we get a palindrome (54938283945).

The spelling of 54121171800 in words is "fifty-four billion, one hundred twenty-one million, one hundred seventy-one thousand, eight hundred".