525645250 has 64 divisors (see below), whose sum is σ = 1066377312. Its totient is φ = 192864000.

The previous prime is 525645233. The next prime is 525645259. The reversal of 525645250 is 52546525.

It can be written as a sum of positive squares in 16 ways, for example, as 21687649 + 503957601 = 4657^2 + 22449^2 .

It is not an unprimeable number, because it can be changed into a prime (525645259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639840 + ... + 640660.

Almost surely, 2^525645250 is an apocalyptic number.

525645250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

525645250 is an abundant number, since it is smaller than the sum of its proper divisors (540732062).

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

525645250 is a wasteful number, since it uses less digits than its factorization.

525645250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The square root of 525645250 is about 22926.9546603992. The cubic root of 525645250 is about 807.0446844785.

The spelling of 525645250 in words is "five hundred twenty-five million, six hundred forty-five thousand, two hundred fifty".