56837557345 has 4 divisors (see below), whose sum is σ = 68205068820. Its totient is φ = 45470045872.

The previous prime is 56837557333. The next prime is 56837557349. The reversal of 56837557345 is 54375573865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54375573865 = 5 ⋅10875114773.

It can be written as a sum of positive squares in 2 ways, for example, as 24764687424 + 32072869921 = 157368^2 + 179089^2 .

It is a cyclic number.

It is not a de Polignac number, because 56837557345 - 2⁵ = 56837557313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56837557345.

It is not an unprimeable number, because it can be changed into a prime (56837557349) 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 3 ways as a sum of consecutive naturals, for example, 5683755730 + ... + 5683755739.

It is an arithmetic number, because the mean of its divisors is an integer number (17051267205).

Almost surely, 2^56837557345 is an apocalyptic number.

It is an amenable number.

56837557345 is a deficient number, since it is larger than the sum of its proper divisors (11367511475).

56837557345 is a wasteful number, since it uses less digits than its factorization.

56837557345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11367511474.

The product of its digits is 52920000, while the sum is 58.

The spelling of 56837557345 in words is "fifty-six billion, eight hundred thirty-seven million, five hundred fifty-seven thousand, three hundred forty-five".