564625854 has 72 divisors (see below), whose sum is σ = 1344350280. Its totient is φ = 170254656.

The previous prime is 564625829. The next prime is 564625891. The reversal of 564625854 is 458526465.

564625854 is a `hidden beast` number, since 5 + 6 + 4 + 62 + 585 + 4 = 666.

564625854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 656877 + ... + 657735.

Almost surely, 2^564625854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564625854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672175140).

564625854 is an abundant number, since it is smaller than the sum of its proper divisors (779724426).

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

564625854 is a wasteful number, since it uses less digits than its factorization.

564625854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 930 counting only the distinct ones).

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

The square root of 564625854 is about 23761.8571243916. The cubic root of 564625854 is about 826.5204182909.

The spelling of 564625854 in words is "five hundred sixty-four million, six hundred twenty-five thousand, eight hundred fifty-four".