56215149458 has 64 divisors (see below), whose sum is σ = 94818232320. Its totient is φ = 24820992000.

The previous prime is 56215149443. The next prime is 56215149461. The reversal of 56215149458 is 85494151265.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27869666 + ... + 27871682.

It is an arithmetic number, because the mean of its divisors is an integer number (1481534880).

Almost surely, 2^56215149458 is an apocalyptic number.

56215149458 is a deficient number, since it is larger than the sum of its proper divisors (38603082862).

56215149458 is a wasteful number, since it uses less digits than its factorization.

56215149458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443.

The product of its digits is 1728000, while the sum is 50.

The spelling of 56215149458 in words is "fifty-six billion, two hundred fifteen million, one hundred forty-nine thousand, four hundred fifty-eight".