10056520657 has 8 divisors (see below), whose sum is σ = 10074175272. Its totient is φ = 10038883200.

The previous prime is 10056520619. The next prime is 10056520673. The reversal of 10056520657 is 75602565001.

It can be written as a sum of positive squares in 4 ways, for example, as 4117660561 + 5938860096 = 64169^2 + 77064^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10056520657 - 2¹⁹ = 10055996369 is a prime.

It is a super-2 number, since 2×10056520657² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10056520157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712907 + ... + 1718767.

It is an arithmetic number, because the mean of its divisors is an integer number (1259271909).

Almost surely, 2^10056520657 is an apocalyptic number.

It is an amenable number.

10056520657 is a deficient number, since it is larger than the sum of its proper divisors (17654615).

10056520657 is an equidigital number, since it uses as much as digits as its factorization.

10056520657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 10056520657 in words is "ten billion, fifty-six million, five hundred twenty thousand, six hundred fifty-seven".