56242140538 has 8 divisors (see below), whose sum is σ = 87084604800. Its totient is φ = 27213938940.

The previous prime is 56242140473. The next prime is 56242140571. The reversal of 56242140538 is 83504124265.

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

It is a super-2 number, since 2×56242140538² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56242140538.

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 3 ways as a sum of consecutive naturals, for example, 453565588 + ... + 453565711.

It is an arithmetic number, because the mean of its divisors is an integer number (10885575600).

Almost surely, 2^56242140538 is an apocalyptic number.

56242140538 is a deficient number, since it is larger than the sum of its proper divisors (30842464262).

56242140538 is a wasteful number, since it uses less digits than its factorization.

56242140538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907131332.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 56242140538 in words is "fifty-six billion, two hundred forty-two million, one hundred forty thousand, five hundred thirty-eight".