525572500 has 30 divisors (see below), whose sum is σ = 1149327410. Its totient is φ = 210228000.

The previous prime is 525572497. The next prime is 525572521. The reversal of 525572500 is 5275525.

It can be written as a sum of positive squares in 5 ways, for example, as 373494276 + 152078224 = 19326^2 + 12332^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 102615 + ... + 107614.

Almost surely, 2^525572500 is an apocalyptic number.

525572500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

525572500 is an abundant number, since it is smaller than the sum of its proper divisors (623754910).

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

525572500 is a wasteful number, since it uses less digits than its factorization.

525572500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210253 (or 210236 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 525572500 is about 22925.3680450282. The cubic root of 525572500 is about 807.0074507424.

The spelling of 525572500 in words is "five hundred twenty-five million, five hundred seventy-two thousand, five hundred".