54400992 has 24 divisors (see below), whose sum is σ = 142802856. Its totient is φ = 18133632.

The previous prime is 54400963. The next prime is 54400993. The reversal of 54400992 is 29900445.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54400993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283243 + ... + 283434.

It is an arithmetic number, because the mean of its divisors is an integer number (5950119).

Almost surely, 2^54400992 is an apocalyptic number.

It is an amenable number.

54400992 is an abundant number, since it is smaller than the sum of its proper divisors (88401864).

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

54400992 is a wasteful number, since it uses less digits than its factorization.

54400992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566690 (or 566682 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 54400992 is about 7375.7028139697. The cubic root of 54400992 is about 378.9095980224.

The spelling of 54400992 in words is "fifty-four million, four hundred thousand, nine hundred ninety-two".