54651332520 has 96 divisors (see below), whose sum is σ = 178413580800. Its totient is φ = 14508314496.

The previous prime is 54651332509. The next prime is 54651332551. The reversal of 54651332520 is 2523315645.

54651332520 is a `hidden beast` number, since 54 + 6 + 51 + 3 + 32 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260100 + ... + 420659.

It is an arithmetic number, because the mean of its divisors is an integer number (1858474800).

Almost surely, 2^54651332520 is an apocalyptic number.

It is an amenable number.

54651332520 is an abundant number, since it is smaller than the sum of its proper divisors (123762248280).

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

54651332520 is a wasteful number, since it uses less digits than its factorization.

54651332520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680999 (or 680992 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 54651332520 in words is "fifty-four billion, six hundred fifty-one million, three hundred thirty-two thousand, five hundred twenty".