564525987 has 16 divisors (see below), whose sum is σ = 808877952. Its totient is φ = 348923520.

The previous prime is 564525959. The next prime is 564525989. The reversal of 564525987 is 789525465.

It is not a de Polignac number, because 564525987 - 2⁷ = 564525859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (564525989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79189 + ... + 86022.

It is an arithmetic number, because the mean of its divisors is an integer number (50554872).

Almost surely, 2^564525987 is an apocalyptic number.

564525987 is a deficient number, since it is larger than the sum of its proper divisors (244351965).

564525987 is a wasteful number, since it uses less digits than its factorization.

564525987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165298.

The product of its digits is 3024000, while the sum is 51.

The square root of 564525987 is about 23759.7556174301. The cubic root of 564525987 is about 826.4716857358.

The spelling of 564525987 in words is "five hundred sixty-four million, five hundred twenty-five thousand, nine hundred eighty-seven".