534565531 has 2 divisors, whose sum is σ = 534565532. Its totient is φ = 534565530.

The previous prime is 534565523. The next prime is 534565553. The reversal of 534565531 is 135565435.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 534565531 - 2³ = 534565523 is a prime.

It is a super-2 number, since 2×534565531² = 571520613866623922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (534565511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267282765 + 267282766.

It is an arithmetic number, because the mean of its divisors is an integer number (267282766).

Almost surely, 2^534565531 is an apocalyptic number.

534565531 is a deficient number, since it is larger than the sum of its proper divisors (1).

534565531 is an equidigital number, since it uses as much as digits as its factorization.

534565531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 135000, while the sum is 37.

The square root of 534565531 is about 23120.6732384678. The cubic root of 534565531 is about 811.5843253125.

It can be divided in two parts, 5345 and 65531, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 534565531 in words is "five hundred thirty-four million, five hundred sixty-five thousand, five hundred thirty-one".