325631 has 2 divisors, whose sum is σ = 325632. Its totient is φ = 325630.

The previous prime is 325627. The next prime is 325643. The reversal of 325631 is 136523.

It is a weak prime.

It is an emirp because it is prime and its reverse (136523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325631 - 2² = 325627 is a prime.

It is a super-2 number, since 2×325631² = 212071096322, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 325631.

It is not a weakly prime, because it can be changed into another prime (325681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162815 + 162816.

It is an arithmetic number, because the mean of its divisors is an integer number (162816).

2³²⁵⁶³¹ is an apocalyptic number.

325631 is a deficient number, since it is larger than the sum of its proper divisors (1).

325631 is an equidigital number, since it uses as much as digits as its factorization.

325631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 20.

The square root of 325631 is about 570.6408677969. The cubic root of 325631 is about 68.7979104062.

The spelling of 325631 in words is "three hundred twenty-five thousand, six hundred thirty-one".