16325531 has 2 divisors, whose sum is σ = 16325532. Its totient is φ = 16325530.

The previous prime is 16325489. The next prime is 16325557. The reversal of 16325531 is 13552361.

It is an a-pointer prime, because the next prime (16325557) can be obtained adding 16325531 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16325531 - 2⁶ = 16325467 is a prime.

It is a super-2 number, since 2×16325531² = 533045924863922, 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 16325531.

It is not a weakly prime, because it can be changed into another prime (16325131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8162765 + 8162766.

It is an arithmetic number, because the mean of its divisors is an integer number (8162766).

Almost surely, 2^16325531 is an apocalyptic number.

16325531 is a deficient number, since it is larger than the sum of its proper divisors (1).

16325531 is an equidigital number, since it uses as much as digits as its factorization.

16325531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 16325531 is about 4040.4864806110. The cubic root of 16325531 is about 253.6816801034.

Adding to 16325531 its reverse (13552361), we get a palindrome (29877892).

The spelling of 16325531 in words is "sixteen million, three hundred twenty-five thousand, five hundred thirty-one".