525584664 has 96 divisors (see below), whose sum is σ = 1603031040. Its totient is φ = 154123200.

The previous prime is 525584659. The next prime is 525584687. The reversal of 525584664 is 466485525.

525584664 is a `hidden beast` number, since 5 + 2 + 5 + 584 + 6 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13849 + ... + 35255.

It is an arithmetic number, because the mean of its divisors is an integer number (16698240).

Almost surely, 2^525584664 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 525584664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801515520).

525584664 is an abundant number, since it is smaller than the sum of its proper divisors (1077446376).

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

525584664 is a wasteful number, since it uses less digits than its factorization.

525584664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21461 (or 21454 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 525584664 is about 22925.6333391250. The cubic root of 525584664 is about 807.0136765646.

The spelling of 525584664 in words is "five hundred twenty-five million, five hundred eighty-four thousand, six hundred sixty-four".