56215743015 has 64 divisors (see below), whose sum is σ = 94196846592. Its totient is φ = 28595328000.

The previous prime is 56215743011. The next prime is 56215743037. The reversal of 56215743015 is 51034751265.

It is not a de Polignac number, because 56215743015 - 2² = 56215743011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56215743011) 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 63 ways as a sum of consecutive naturals, for example, 10658419 + ... + 10663691.

It is an arithmetic number, because the mean of its divisors is an integer number (1471825728).

Almost surely, 2^56215743015 is an apocalyptic number.

56215743015 is a deficient number, since it is larger than the sum of its proper divisors (37981103577).

56215743015 is a wasteful number, since it uses less digits than its factorization.

56215743015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5640.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 56215743015 in words is "fifty-six billion, two hundred fifteen million, seven hundred forty-three thousand, fifteen".