56477994 has 16 divisors (see below), whose sum is σ = 118901280. Its totient is φ = 17835120.

The previous prime is 56477989. The next prime is 56477999. The reversal of 56477994 is 49977465.

It is an interprime number because it is at equal distance from previous prime (56477989) and next prime (56477999).

It is a super-3 number, since 3×56477994³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (56477999) 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, 247597 + ... + 247824.

It is an arithmetic number, because the mean of its divisors is an integer number (7431330).

Almost surely, 2^56477994 is an apocalyptic number.

56477994 is an abundant number, since it is smaller than the sum of its proper divisors (62423286).

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

56477994 is a wasteful number, since it uses less digits than its factorization.

56477994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495445.

The product of its digits is 1905120, while the sum is 51.

The square root of 56477994 is about 7515.1842292787. The cubic root of 56477994 is about 383.6716893259.

The spelling of 56477994 in words is "fifty-six million, four hundred seventy-seven thousand, nine hundred ninety-four".