525411520 has 112 divisors (see below), whose sum is σ = 1348008480. Its totient is φ = 194330624.

The previous prime is 525411511. The next prime is 525411643. The reversal of 525411520 is 25114525.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320142 + ... + 321778.

It is an arithmetic number, because the mean of its divisors is an integer number (12035790).

Almost surely, 2^525411520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525411520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674004240).

525411520 is an abundant number, since it is smaller than the sum of its proper divisors (822596960).

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

525411520 is a wasteful number, since it uses less digits than its factorization.

525411520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 525411520 is about 22921.8568183295. The cubic root of 525411520 is about 806.9250483301.

The spelling of 525411520 in words is "five hundred twenty-five million, four hundred eleven thousand, five hundred twenty".