525305490 has 64 divisors (see below), whose sum is σ = 1275595776. Its totient is φ = 138442752.

The previous prime is 525305477. The next prime is 525305513. The reversal of 525305490 is 94503525.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1558602 + ... + 1558938.

It is an arithmetic number, because the mean of its divisors is an integer number (19931184).

Almost surely, 2^525305490 is an apocalyptic number.

525305490 is an abundant number, since it is smaller than the sum of its proper divisors (750290286).

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

525305490 is a wasteful number, since it uses less digits than its factorization.

525305490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 525305490 is about 22919.5438436283. The cubic root of 525305490 is about 806.8707645192.

The spelling of 525305490 in words is "five hundred twenty-five million, three hundred five thousand, four hundred ninety".