56177940 has 96 divisors (see below), whose sum is σ = 193616640. Its totient is φ = 11851776.

The previous prime is 56177879. The next prime is 56177963. The reversal of 56177940 is 4977165.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316 + ... + 10604.

It is an arithmetic number, because the mean of its divisors is an integer number (2016840).

Almost surely, 2^56177940 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 56177940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96808320).

56177940 is an abundant number, since it is smaller than the sum of its proper divisors (137438700).

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

56177940 is a wasteful number, since it uses less digits than its factorization.

56177940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10321 (or 10319 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 56177940 is about 7495.1944604526. The cubic root of 56177940 is about 382.9910307012.

The spelling of 56177940 in words is "fifty-six million, one hundred seventy-seven thousand, nine hundred forty".