56653140 has 96 divisors (see below), whose sum is σ = 168489216. Its totient is φ = 14192640.

The previous prime is 56653139. The next prime is 56653147. The reversal of 56653140 is 4135665.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 56653098 and 56653107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56653147) 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, 83844 + ... + 84516.

It is an arithmetic number, because the mean of its divisors is an integer number (1755096).

Almost surely, 2^56653140 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 56653140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84244608).

56653140 is an abundant number, since it is smaller than the sum of its proper divisors (111836076).

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

56653140 is a wasteful number, since it uses less digits than its factorization.

56653140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 56653140 is about 7526.8280171663. The cubic root of 56653140 is about 384.0678862184.

The spelling of 56653140 in words is "fifty-six million, six hundred fifty-three thousand, one hundred forty".