523221657875 has 32 divisors (see below), whose sum is σ = 756774420480. Its totient is φ = 353727276000.

The previous prime is 523221657851. The next prime is 523221657961. The reversal of 523221657875 is 578756122325.

It is not a de Polignac number, because 523221657875 - 2⁶ = 523221657811 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4148915 + ... + 4273164.

It is an arithmetic number, because the mean of its divisors is an integer number (23649200640).

Almost surely, 2^523221657875 is an apocalyptic number.

523221657875 is a deficient number, since it is larger than the sum of its proper divisors (233552762605).

523221657875 is an equidigital number, since it uses as much as digits as its factorization.

523221657875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422172 (or 8422162 counting only the distinct ones).

The product of its digits is 7056000, while the sum is 53.

The spelling of 523221657875 in words is "five hundred twenty-three billion, two hundred twenty-one million, six hundred fifty-seven thousand, eight hundred seventy-five".