325540031 has 2 divisors, whose sum is σ = 325540032. Its totient is φ = 325540030.

The previous prime is 325540013. The next prime is 325540043. The reversal of 325540031 is 130045523.

Together with previous prime (325540013) 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 325540031 - 2⁶ = 325539967 is a prime.

It is a super-2 number, since 2×325540031² = 211952623566961922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 325539979 and 325540006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325540081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162770015 + 162770016.

It is an arithmetic number, because the mean of its divisors is an integer number (162770016).

Almost surely, 2^325540031 is an apocalyptic number.

325540031 is a deficient number, since it is larger than the sum of its proper divisors (1).

325540031 is an equidigital number, since it uses as much as digits as its factorization.

325540031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 325540031 is about 18042.7279256769. The cubic root of 325540031 is about 687.9150329709.

Adding to 325540031 its reverse (130045523), we get a palindrome (455585554).

The spelling of 325540031 in words is "three hundred twenty-five million, five hundred forty thousand, thirty-one".