525590 has 24 divisors (see below), whose sum is σ = 1027728. Its totient is φ = 193440.

The previous prime is 525583. The next prime is 525593. The reversal of 525590 is 95525.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1535 + ... + 1845.

It is an arithmetic number, because the mean of its divisors is an integer number (42822).

2⁵²⁵⁵⁹⁰ is an apocalyptic number.

525590 is a deficient number, since it is larger than the sum of its proper divisors (502138).

525590 is a wasteful number, since it uses less digits than its factorization.

525590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 525590 is about 724.9758616671. The cubic root of 525590 is about 80.7016407625.

The spelling of 525590 in words is "five hundred twenty-five thousand, five hundred ninety".