56155215245 has 8 divisors (see below), whose sum is σ = 67396903416. Its totient is φ = 44917075456.

The previous prime is 56155215229. The next prime is 56155215251. The reversal of 56155215245 is 54251255165.

It can be written as a sum of positive squares in 4 ways, for example, as 5934853444 + 50220361801 = 77038^2 + 224099^2 .

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 56155215245 - 2⁴ = 56155215229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 852152 + ... + 915681.

It is an arithmetic number, because the mean of its divisors is an integer number (8424612927).

Almost surely, 2^56155215245 is an apocalyptic number.

It is an amenable number.

56155215245 is a deficient number, since it is larger than the sum of its proper divisors (11241688171).

56155215245 is a wasteful number, since it uses less digits than its factorization.

56155215245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774191.

The product of its digits is 300000, while the sum is 41.

The spelling of 56155215245 in words is "fifty-six billion, one hundred fifty-five million, two hundred fifteen thousand, two hundred forty-five".