56773566 has 24 divisors (see below), whose sum is σ = 123953544. Its totient is φ = 18779280.

The previous prime is 56773553. The next prime is 56773579. The reversal of 56773566 is 66537765.

It is an interprime number because it is at equal distance from previous prime (56773553) and next prime (56773579).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9681 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (5164731).

Almost surely, 2^56773566 is an apocalyptic number.

56773566 is an abundant number, since it is smaller than the sum of its proper divisors (67179978).

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

56773566 is a wasteful number, since it uses less digits than its factorization.

56773566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24216 (or 24213 counting only the distinct ones).

The product of its digits is 793800, while the sum is 45.

The square root of 56773566 is about 7534.8235546693. The cubic root of 56773566 is about 384.3398277553.

The spelling of 56773566 in words is "fifty-six million, seven hundred seventy-three thousand, five hundred sixty-six".