525490392 has 32 divisors (see below), whose sum is σ = 1501401600. Its totient is φ = 150140064.

The previous prime is 525490367. The next prime is 525490397. The reversal of 525490392 is 293094525.

It is a super-2 number, since 2×525490392² = 552280304168627328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 525490392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525490397) 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, 1563792 + ... + 1564127.

It is an arithmetic number, because the mean of its divisors is an integer number (46918800).

Almost surely, 2^525490392 is an apocalyptic number.

It is an amenable number.

525490392 is an abundant number, since it is smaller than the sum of its proper divisors (975911208).

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

525490392 is a wasteful number, since it uses less digits than its factorization.

525490392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127935 (or 3127931 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 525490392 is about 22923.5772077571. The cubic root of 525490392 is about 806.9654234175.

The spelling of 525490392 in words is "five hundred twenty-five million, four hundred ninety thousand, three hundred ninety-two".