525745664 has 20 divisors (see below), whose sum is σ = 1050465504. Its totient is φ = 262872576.

The previous prime is 525745657. The next prime is 525745673. The reversal of 525745664 is 466547525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512912 + ... + 513935.

Almost surely, 2^525745664 is an apocalyptic number.

It is an amenable number.

525745664 is a deficient number, since it is larger than the sum of its proper divisors (524719840).

525745664 is an equidigital number, since it uses as much as digits as its factorization.

525745664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026865 (or 1026849 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 44.

The square root of 525745664 is about 22929.1444236369. The cubic root of 525745664 is about 807.0960711157.

The spelling of 525745664 in words is "five hundred twenty-five million, seven hundred forty-five thousand, six hundred sixty-four".