56561525245 has 4 divisors (see below), whose sum is σ = 67873830300. Its totient is φ = 45249220192.

The previous prime is 56561525219. The next prime is 56561525257. The reversal of 56561525245 is 54252516565.

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 25860177721 + 30701347524 = 160811^2 + 175218^2 .

It is a cyclic number.

It is not a de Polignac number, because 56561525245 - 2¹⁹ = 56561000957 is a prime.

It is a super-2 number, since 2×56561525245² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56561525195 and 56561525204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5656152520 + ... + 5656152529.

It is an arithmetic number, because the mean of its divisors is an integer number (16968457575).

Almost surely, 2^56561525245 is an apocalyptic number.

It is an amenable number.

56561525245 is a deficient number, since it is larger than the sum of its proper divisors (11312305055).

56561525245 is a wasteful number, since it uses less digits than its factorization.

56561525245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11312305054.

The product of its digits is 1800000, while the sum is 46.

The spelling of 56561525245 in words is "fifty-six billion, five hundred sixty-one million, five hundred twenty-five thousand, two hundred forty-five".