54311609856 has 80 divisors (see below), whose sum is σ = 165359487744. Its totient is φ = 15517599744.

The previous prime is 54311609837. The next prime is 54311609861. The reversal of 54311609856 is 65890611345.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2514900 + ... + 2536403.

Almost surely, 2^54311609856 is an apocalyptic number.

54311609856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

54311609856 is an abundant number, since it is smaller than the sum of its proper divisors (111047877888).

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

54311609856 is an equidigital number, since it uses as much as digits as its factorization.

54311609856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051331 (or 5051315 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The spelling of 54311609856 in words is "fifty-four billion, three hundred eleven million, six hundred nine thousand, eight hundred fifty-six".