56517605153 has 8 divisors (see below), whose sum is σ = 59984320680. Its totient is φ = 53066684160.

The previous prime is 56517605129. The next prime is 56517605159. The reversal of 56517605153 is 35150671565.

It can be written as a sum of positive squares in 4 ways, for example, as 16216239649 + 40301365504 = 127343^2 + 200752^2 .

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 56517605153 - 2¹⁴ = 56517588769 is a prime.

It is a super-3 number, since 3×56517605153³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56517605159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3941258 + ... + 3955571.

It is an arithmetic number, because the mean of its divisors is an integer number (7498040085).

Almost surely, 2^56517605153 is an apocalyptic number.

It is an amenable number.

56517605153 is a deficient number, since it is larger than the sum of its proper divisors (3466715527).

56517605153 is a wasteful number, since it uses less digits than its factorization.

56517605153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897267.

The product of its (nonzero) digits is 472500, while the sum is 44.

The spelling of 56517605153 in words is "fifty-six billion, five hundred seventeen million, six hundred five thousand, one hundred fifty-three".