531062531 has 2 divisors, whose sum is σ = 531062532. Its totient is φ = 531062530.

The previous prime is 531062527. The next prime is 531062557. The reversal of 531062531 is 135260135.

It is an a-pointer prime, because the next prime (531062557) can be obtained adding 531062531 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531062531 - 2² = 531062527 is a prime.

It is a super-2 number, since 2×531062531² = 564054823664251922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531062531.

It is not a weakly prime, because it can be changed into another prime (531062501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265531265 + 265531266.

It is an arithmetic number, because the mean of its divisors is an integer number (265531266).

Almost surely, 2^531062531 is an apocalyptic number.

531062531 is a deficient number, since it is larger than the sum of its proper divisors (1).

531062531 is an equidigital number, since it uses as much as digits as its factorization.

531062531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 531062531 is about 23044.7940107956. The cubic root of 531062531 is about 809.8076721645.

The spelling of 531062531 in words is "five hundred thirty-one million, sixty-two thousand, five hundred thirty-one".