56242154123 has 4 divisors (see below), whose sum is σ = 56242669008. Its totient is φ = 56241639240.

The previous prime is 56242154113. The next prime is 56242154159. The reversal of 56242154123 is 32145124265.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56242154123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56242154113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21536 + ... + 336077.

It is an arithmetic number, because the mean of its divisors is an integer number (14060667252).

Almost surely, 2^56242154123 is an apocalyptic number.

56242154123 is a deficient number, since it is larger than the sum of its proper divisors (514885).

56242154123 is a wasteful number, since it uses less digits than its factorization.

56242154123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514884.

The product of its digits is 57600, while the sum is 35.

Adding to 56242154123 its reverse (32145124265), we get a palindrome (88387278388).

The spelling of 56242154123 in words is "fifty-six billion, two hundred forty-two million, one hundred fifty-four thousand, one hundred twenty-three".