564454111531 has 4 divisors (see below), whose sum is σ = 564457414752. Its totient is φ = 564450808312.

The previous prime is 564454111453. The next prime is 564454111537. The reversal of 564454111531 is 135111454465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 564454111531 - 2²³ = 564445722923 is a prime.

It is a super-2 number, since 2×564454111531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564454111537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380451 + ... + 1741996.

It is an arithmetic number, because the mean of its divisors is an integer number (141114353688).

Almost surely, 2^564454111531 is an apocalyptic number.

564454111531 is a deficient number, since it is larger than the sum of its proper divisors (3303221).

564454111531 is a wasteful number, since it uses less digits than its factorization.

564454111531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303220.

The product of its digits is 144000, while the sum is 40.

Adding to 564454111531 its reverse (135111454465), we get a palindrome (699565565996).

The spelling of 564454111531 in words is "five hundred sixty-four billion, four hundred fifty-four million, one hundred eleven thousand, five hundred thirty-one".