56001857953 has 4 divisors (see below), whose sum is σ = 56192990868. Its totient is φ = 55810725040.

The previous prime is 56001857903. The next prime is 56001857959. The reversal of 56001857953 is 35975810065.

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 31775558049 + 24226299904 = 178257^2 + 155648^2 .

It is a cyclic number.

It is not a de Polignac number, because 56001857953 - 2¹⁷ = 56001726881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56001857897 and 56001857906.

It is not an unprimeable number, because it can be changed into a prime (56001857959) 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, 95566018 + ... + 95566603.

It is an arithmetic number, because the mean of its divisors is an integer number (14048247717).

Almost surely, 2^56001857953 is an apocalyptic number.

It is an amenable number.

56001857953 is a deficient number, since it is larger than the sum of its proper divisors (191132915).

56001857953 is a wasteful number, since it uses less digits than its factorization.

56001857953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191132914.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 56001857953 in words is "fifty-six billion, one million, eight hundred fifty-seven thousand, nine hundred fifty-three".