525318780 has 96 divisors (see below), whose sum is σ = 1684085760. Its totient is φ = 119854080.

The previous prime is 525318749. The next prime is 525318791. The reversal of 525318780 is 87813525.

It is a congruent number.

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, 385300 + ... + 386660.

It is an arithmetic number, because the mean of its divisors is an integer number (17542560).

Almost surely, 2^525318780 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 525318780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842042880).

525318780 is an abundant number, since it is smaller than the sum of its proper divisors (1158766980).

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

525318780 is a wasteful number, since it uses less digits than its factorization.

525318780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299 (or 2297 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 525318780 is about 22919.8337690307. The cubic root of 525318780 is about 806.8775689547.

The spelling of 525318780 in words is "five hundred twenty-five million, three hundred eighteen thousand, seven hundred eighty".