56542808623 has 8 divisors (see below), whose sum is σ = 64621874592. Its totient is φ = 48464123136.

The previous prime is 56542808603. The next prime is 56542808627. The reversal of 56542808623 is 32680824565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56542808623 is a prime.

It is a super-2 number, since 2×56542808623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56542808627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 384711 + ... + 510967.

It is an arithmetic number, because the mean of its divisors is an integer number (8077734324).

Almost surely, 2^56542808623 is an apocalyptic number.

56542808623 is a deficient number, since it is larger than the sum of its proper divisors (8079065969).

56542808623 is a wasteful number, since it uses less digits than its factorization.

56542808623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190241.

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 56542808623 in words is "fifty-six billion, five hundred forty-two million, eight hundred eight thousand, six hundred twenty-three".