523116020 has 24 divisors (see below), whose sum is σ = 1255478784. Its totient is φ = 179354016.

The previous prime is 523116017. The next prime is 523116031. The reversal of 523116020 is 20611325.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 523115983 and 523116001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868132 + ... + 1868411.

It is an arithmetic number, because the mean of its divisors is an integer number (52311616).

Almost surely, 2^523116020 is an apocalyptic number.

It is an amenable number.

523116020 is an abundant number, since it is smaller than the sum of its proper divisors (732362764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523116020 is a wasteful number, since it uses less digits than its factorization.

523116020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736559 (or 3736557 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 523116020 is about 22871.7297115894. The cubic root of 523116020 is about 805.7481926792.

Adding to 523116020 its reverse (20611325), we get a palindrome (543727345).

The spelling of 523116020 in words is "five hundred twenty-three million, one hundred sixteen thousand, twenty".