56071764 has 168 divisors, whose sum is σ = 174810048. Its totient is φ = 15396480.

The previous prime is 56071739. The next prime is 56071801. The reversal of 56071764 is 46717065.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 836859 + ... + 836925.

It is an arithmetic number, because the mean of its divisors is an integer number (1040536).

Almost surely, 2^56071764 is an apocalyptic number.

56071764 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56071764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87405024).

56071764 is an abundant number, since it is smaller than the sum of its proper divisors (118738284).

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

56071764 is a wasteful number, since it uses less digits than its factorization.

56071764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 56071764 is about 7488.1081722956. The cubic root of 56071764 is about 382.7495948805.

The spelling of 56071764 in words is "fifty-six million, seventy-one thousand, seven hundred sixty-four".