56503577123 has 8 divisors (see below), whose sum is σ = 65893384800. Its totient is φ = 48431637240.

The previous prime is 56503577113. The next prime is 56503577129. The reversal of 56503577123 is 32177530565.

It is not a de Polignac number, because 56503577123 - 2¹⁸ = 56503314979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56503577129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82366388 + ... + 82367073.

It is an arithmetic number, because the mean of its divisors is an integer number (8236673100).

Almost surely, 2^56503577123 is an apocalyptic number.

56503577123 is a deficient number, since it is larger than the sum of its proper divisors (9389807677).

56503577123 is an equidigital number, since it uses as much as digits as its factorization.

56503577123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164733482 (or 164733468 counting only the distinct ones).

The product of its (nonzero) digits is 661500, while the sum is 44.

The spelling of 56503577123 in words is "fifty-six billion, five hundred three million, five hundred seventy-seven thousand, one hundred twenty-three".