525429864 has 24 divisors (see below), whose sum is σ = 1423039410. Its totient is φ = 175143264.

The previous prime is 525429847. The next prime is 525429889. The reversal of 525429864 is 468924525.

525429864 is a `hidden beast` number, since 525 + 42 + 9 + 86 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 504361764 + 21068100 = 22458^2 + 4590^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3648747 + ... + 3648890.

Almost surely, 2^525429864 is an apocalyptic number.

It is an amenable number.

525429864 is an abundant number, since it is smaller than the sum of its proper divisors (897609546).

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

525429864 is a wasteful number, since it uses less digits than its factorization.

525429864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7297649 (or 7297642 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 525429864 is about 22922.2569569403. The cubic root of 525429864 is about 806.9344391030.

The spelling of 525429864 in words is "five hundred twenty-five million, four hundred twenty-nine thousand, eight hundred sixty-four".