5657006520 has 384 divisors, whose sum is σ = 21046132800. Its totient is φ = 1350328320.

The previous prime is 5657006507. The next prime is 5657006521. The reversal of 5657006520 is 256007565.

5657006520 is a `hidden beast` number, since 5 + 6 + 570 + 0 + 65 + 20 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657006521) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9539344 + ... + 9539936.

Almost surely, 2^5657006520 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 5657006520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10523066400).

5657006520 is an abundant number, since it is smaller than the sum of its proper divisors (15389126280).

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

5657006520 is a wasteful number, since it uses less digits than its factorization.

5657006520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 5657006520 is about 75213.0741294358. The cubic root of 5657006520 is about 1781.8134235387.

The spelling of 5657006520 in words is "five billion, six hundred fifty-seven million, six thousand, five hundred twenty".