55474327820 has 24 divisors (see below), whose sum is σ = 116649203328. Its totient is φ = 22160566400.

The previous prime is 55474327813. The next prime is 55474327829. The reversal of 55474327820 is 2872347455.

It is not an unprimeable number, because it can be changed into a prime (55474327829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1807196 + ... + 1837635.

It is an arithmetic number, because the mean of its divisors is an integer number (4860383472).

Almost surely, 2^55474327820 is an apocalyptic number.

It is an amenable number.

55474327820 is an abundant number, since it is smaller than the sum of its proper divisors (61174875508).

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

55474327820 is a wasteful number, since it uses less digits than its factorization.

55474327820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645601 (or 3645599 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 47.

The spelling of 55474327820 in words is "fifty-five billion, four hundred seventy-four million, three hundred twenty-seven thousand, eight hundred twenty".