56001250553557 has 4 divisors (see below), whose sum is σ = 56001652432236. Its totient is φ = 56000848674880.

The previous prime is 56001250553513. The next prime is 56001250553569. The reversal of 56001250553557 is 75535505210065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35731211598481 + 20270038955076 = 5977559^2 + 4502226^2 .

It is a cyclic number.

It is not a de Polignac number, because 56001250553557 - 2⁴³ = 47205157531349 is a prime.

It is a super-2 number, since 2×56001250553557² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56001250553557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56001250553057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200730244 + ... + 201009037.

It is an arithmetic number, because the mean of its divisors is an integer number (14000413108059).

Almost surely, 2^{56001250553557} is an apocalyptic number.

It is an amenable number.

56001250553557 is a deficient number, since it is larger than the sum of its proper divisors (401878679).

56001250553557 is a wasteful number, since it uses less digits than its factorization.

56001250553557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401878678.

The product of its (nonzero) digits is 3937500, while the sum is 49.

The spelling of 56001250553557 in words is "fifty-six trillion, one billion, two hundred fifty million, five hundred fifty-three thousand, five hundred fifty-seven".