56773938 has 64 divisors (see below), whose sum is σ = 133257600. Its totient is φ = 15966720.

The previous prime is 56773933. The next prime is 56773939. The reversal of 56773938 is 83937765.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56773933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42318 + ... + 43638.

It is an arithmetic number, because the mean of its divisors is an integer number (2082150).

Almost surely, 2^56773938 is an apocalyptic number.

56773938 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56773938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66628800).

56773938 is an abundant number, since it is smaller than the sum of its proper divisors (76483662).

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

56773938 is a wasteful number, since it uses less digits than its factorization.

56773938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387.

The product of its digits is 952560, while the sum is 48.

The square root of 56773938 is about 7534.8482400112. The cubic root of 56773938 is about 384.3406671959.

The spelling of 56773938 in words is "fifty-six million, seven hundred seventy-three thousand, nine hundred thirty-eight".