572646564 has 144 divisors (see below), whose sum is σ = 1803096960. Its totient is φ = 153930240.

The previous prime is 572646563. The next prime is 572646583. The reversal of 572646564 is 465646275.

It is a super-2 number, since 2×572646564² = 655848174522012192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (572646563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217174 + ... + 219794.

Almost surely, 2^572646564 is an apocalyptic number.

572646564 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 572646564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (901548480).

572646564 is an abundant number, since it is smaller than the sum of its proper divisors (1230450396).

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

572646564 is a wasteful number, since it uses less digits than its factorization.

572646564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675 (or 2650 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The square root of 572646564 is about 23930.0347680483. The cubic root of 572646564 is about 830.4157031178.

The spelling of 572646564 in words is "five hundred seventy-two million, six hundred forty-six thousand, five hundred sixty-four".