55804218354 has 32 divisors (see below), whose sum is σ = 125147088000. Its totient is φ = 18430749072.

The previous prime is 55804218277. The next prime is 55804218361. The reversal of 55804218354 is 45381240855.

55804218354 is a `hidden beast` number, since 5 + 5 + 80 + 4 + 218 + 354 = 666.

It is a super-2 number, since 2×55804218354² (a number of 22 digits) contains 22 as substring.

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, 4734534 + ... + 4746305.

It is an arithmetic number, because the mean of its divisors is an integer number (3910846500).

Almost surely, 2^55804218354 is an apocalyptic number.

55804218354 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

55804218354 is an abundant number, since it is smaller than the sum of its proper divisors (69342869646).

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

55804218354 is a wasteful number, since it uses less digits than its factorization.

55804218354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480959 (or 9480953 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 45.

The spelling of 55804218354 in words is "fifty-five billion, eight hundred four million, two hundred eighteen thousand, three hundred fifty-four".