56213522145 has 48 divisors (see below), whose sum is σ = 106368297984. Its totient is φ = 27236160000.

The previous prime is 56213522137. The next prime is 56213522207. The reversal of 56213522145 is 54122531265.

56213522145 is a `hidden beast` number, since 5 + 621 + 3 + 5 + 2 + 21 + 4 + 5 = 666.

It is not a de Polignac number, because 56213522145 - 2³ = 56213522137 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 689545 + ... + 766745.

It is an arithmetic number, because the mean of its divisors is an integer number (2216006208).

Almost surely, 2^56213522145 is an apocalyptic number.

56213522145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56213522145 is a deficient number, since it is larger than the sum of its proper divisors (50154775839).

56213522145 is a wasteful number, since it uses less digits than its factorization.

56213522145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78694 (or 78691 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 56213522145 in words is "fifty-six billion, two hundred thirteen million, five hundred twenty-two thousand, one hundred forty-five".