564540988 has 48 divisors (see below), whose sum is σ = 1097929728. Its totient is φ = 253954800.

The previous prime is 564540983. The next prime is 564540997. The reversal of 564540988 is 889045465.

It is a super-2 number, since 2×564540988² = 637413054264032288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564540983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569173 + ... + 570163.

It is an arithmetic number, because the mean of its divisors is an integer number (22873536).

Almost surely, 2^564540988 is an apocalyptic number.

It is an amenable number.

564540988 is a deficient number, since it is larger than the sum of its proper divisors (533388740).

564540988 is a wasteful number, since it uses less digits than its factorization.

564540988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 49.

The square root of 564540988 is about 23760.0712961893. The cubic root of 564540988 is about 826.4790062089.

The spelling of 564540988 in words is "five hundred sixty-four million, five hundred forty thousand, nine hundred eighty-eight".