54390056 has 16 divisors (see below), whose sum is σ = 116550240. Its totient is φ = 23310000.

The previous prime is 54390041. The next prime is 54390071. The reversal of 54390056 is 65009345.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (54390041) and next prime (54390071).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485570 + ... + 485681.

It is an arithmetic number, because the mean of its divisors is an integer number (7284390).

Almost surely, 2^54390056 is an apocalyptic number.

54390056 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

54390056 is an abundant number, since it is smaller than the sum of its proper divisors (62160184).

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

54390056 is a wasteful number, since it uses less digits than its factorization.

54390056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971264 (or 971260 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 54390056 is about 7374.9614236279. The cubic root of 54390056 is about 378.8842061259.

The spelling of 54390056 in words is "fifty-four million, three hundred ninety thousand, fifty-six".