325111531 has 2 divisors, whose sum is σ = 325111532. Its totient is φ = 325111530.

The previous prime is 325111513. The next prime is 325111541. The reversal of 325111531 is 135111523.

Together with previous prime (325111513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 325111531 - 2⁵ = 325111499 is a prime.

It is a super-2 number, since 2×325111531² = 211395015178327922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (325111541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162555765 + 162555766.

It is an arithmetic number, because the mean of its divisors is an integer number (162555766).

Almost surely, 2^325111531 is an apocalyptic number.

325111531 is a deficient number, since it is larger than the sum of its proper divisors (1).

325111531 is an equidigital number, since it uses as much as digits as its factorization.

325111531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450, while the sum is 22.

The square root of 325111531 is about 18030.8494253599. The cubic root of 325111531 is about 687.6130721350.

The spelling of 325111531 in words is "three hundred twenty-five million, one hundred eleven thousand, five hundred thirty-one".