525630540 has 48 divisors (see below), whose sum is σ = 1478776320. Its totient is φ = 139500480.

The previous prime is 525630517. The next prime is 525630551. The reversal of 525630540 is 45036525.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 525630498 and 525630507.

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, 8100 + ... + 33419.

It is an arithmetic number, because the mean of its divisors is an integer number (30807840).

Almost surely, 2^525630540 is an apocalyptic number.

It is an amenable number.

525630540 is an abundant number, since it is smaller than the sum of its proper divisors (953145780).

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

525630540 is a wasteful number, since it uses less digits than its factorization.

525630540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41742 (or 41740 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 525630540 is about 22926.6338567178. The cubic root of 525630540 is about 807.0371561198.

The spelling of 525630540 in words is "five hundred twenty-five million, six hundred thirty thousand, five hundred forty".