525225720 has 32 divisors (see below), whose sum is σ = 1575677520. Its totient is φ = 140060160.

The previous prime is 525225713. The next prime is 525225739. The reversal of 525225720 is 27522525.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2188321 + ... + 2188560.

Almost surely, 2^525225720 is an apocalyptic number.

It is an amenable number.

525225720 is an abundant number, since it is smaller than the sum of its proper divisors (1050451800).

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

525225720 is a wasteful number, since it uses less digits than its factorization.

525225720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376895 (or 4376891 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 525225720 is about 22917.8035596782. The cubic root of 525225720 is about 806.8299201341.

The spelling of 525225720 in words is "five hundred twenty-five million, two hundred twenty-five thousand, seven hundred twenty".