525423664 has 10 divisors (see below), whose sum is σ = 1018008380. Its totient is φ = 262711824.

The previous prime is 525423659. The next prime is 525423667. The reversal of 525423664 is 466324525.

It is a super-3 number, since 3×525423664³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (525423667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16419474 + ... + 16419505.

It is an arithmetic number, because the mean of its divisors is an integer number (101800838).

Almost surely, 2^525423664 is an apocalyptic number.

It is an amenable number.

525423664 is a deficient number, since it is larger than the sum of its proper divisors (492584716).

525423664 is a wasteful number, since it uses less digits than its factorization.

525423664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32838987 (or 32838981 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

The square root of 525423664 is about 22922.1217168045. The cubic root of 525423664 is about 806.9312651855.

The spelling of 525423664 in words is "five hundred twenty-five million, four hundred twenty-three thousand, six hundred sixty-four".