522780 has 24 divisors (see below), whose sum is σ = 1463952. Its totient is φ = 139392.

The previous prime is 522763. The next prime is 522787. The reversal of 522780 is 87225.

It is a self number, because there is not a number n which added to its sum of digits gives 522780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522787) 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, 4297 + ... + 4416.

It is an arithmetic number, because the mean of its divisors is an integer number (60998).

2⁵²²⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

522780 is an abundant number, since it is smaller than the sum of its proper divisors (941172).

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

522780 is a wasteful number, since it uses less digits than its factorization.

522780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8725 (or 8723 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 522780 is about 723.0352688493. The cubic root of 522780 is about 80.5575633445.

The spelling of 522780 in words is "five hundred twenty-two thousand, seven hundred eighty".