16252531 has 2 divisors, whose sum is σ = 16252532. Its totient is φ = 16252530.

The previous prime is 16252507. The next prime is 16252541. The reversal of 16252531 is 13525261.

It is a strong prime.

It is an emirp because it is prime and its reverse (13525261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16252531 - 2⁷ = 16252403 is a prime.

It is a super-2 number, since 2×16252531² = 528289527811922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16252496 and 16252505.

It is not a weakly prime, because it can be changed into another prime (16252541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8126265 + 8126266.

It is an arithmetic number, because the mean of its divisors is an integer number (8126266).

Almost surely, 2^16252531 is an apocalyptic number.

16252531 is a deficient number, since it is larger than the sum of its proper divisors (1).

16252531 is an equidigital number, since it uses as much as digits as its factorization.

16252531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 16252531 is about 4031.4427938394. The cubic root of 16252531 is about 253.3030005619.

Adding to 16252531 its reverse (13525261), we get a palindrome (29777792).

The spelling of 16252531 in words is "sixteen million, two hundred fifty-two thousand, five hundred thirty-one".