525440590 has 16 divisors (see below), whose sum is σ = 1001428272. Its totient is φ = 197812864.

The previous prime is 525440579. The next prime is 525440623. The reversal of 525440590 is 95044525.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 1545244 + ... + 1545583.

It is an arithmetic number, because the mean of its divisors is an integer number (62589267).

Almost surely, 2^525440590 is an apocalyptic number.

525440590 is a deficient number, since it is larger than the sum of its proper divisors (475987682).

525440590 is a wasteful number, since it uses less digits than its factorization.

525440590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090851.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 525440590 is about 22922.4909204912. The cubic root of 525440590 is about 806.9399299215.

The spelling of 525440590 in words is "five hundred twenty-five million, four hundred forty thousand, five hundred ninety".