56815250652 has 72 divisors (see below), whose sum is σ = 145639603200. Its totient is φ = 18672290208.

The previous prime is 56815250603. The next prime is 56815250659. The reversal of 56815250652 is 25605251865.

56815250652 is a `hidden beast` number, since 5 + 68 + 1 + 525 + 0 + 65 + 2 = 666.

It is a super-3 number, since 3×56815250652³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56815250598 and 56815250607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56815250659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2053849 + ... + 2081327.

Almost surely, 2^56815250652 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 56815250652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72819801600).

56815250652 is an abundant number, since it is smaller than the sum of its proper divisors (88824352548).

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

56815250652 is a wasteful number, since it uses less digits than its factorization.

56815250652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28295 (or 28290 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The spelling of 56815250652 in words is "fifty-six billion, eight hundred fifteen million, two hundred fifty thousand, six hundred fifty-two".