56477616 has 80 divisors (see below), whose sum is σ = 162593760. Its totient is φ = 16773120.

The previous prime is 56477609. The next prime is 56477669. The reversal of 56477616 is 61677465.

It is a super-2 number, since 2×56477616² = 6379442218086912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16536 + ... + 19656.

It is an arithmetic number, because the mean of its divisors is an integer number (2032422).

Almost surely, 2^56477616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56477616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81296880).

56477616 is an abundant number, since it is smaller than the sum of its proper divisors (106116144).

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

56477616 is a wasteful number, since it uses less digits than its factorization.

56477616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174 (or 3168 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 56477616 is about 7515.1590801526. The cubic root of 56477616 is about 383.6708333688.

The spelling of 56477616 in words is "fifty-six million, four hundred seventy-seven thousand, six hundred sixteen".