525647232 has 240 divisors, whose sum is σ = 1723560300. Its totient is φ = 158906880.

The previous prime is 525647219. The next prime is 525647233. The reversal of 525647232 is 232746525.

525647232 is a `hidden beast` number, since 5 + 2 + 5 + 647 + 2 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525647233) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1254319 + ... + 1254737.

Almost surely, 2^525647232 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 525647232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861780150).

525647232 is an abundant number, since it is smaller than the sum of its proper divisors (1197913068).

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

525647232 is a wasteful number, since it uses less digits than its factorization.

525647232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 435 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 525647232 is about 22926.9978845901. The cubic root of 525647232 is about 807.0456988259.

The spelling of 525647232 in words is "five hundred twenty-five million, six hundred forty-seven thousand, two hundred thirty-two".