16249004531 has 2 divisors, whose sum is σ = 16249004532. Its totient is φ = 16249004530.

The previous prime is 16249004521. The next prime is 16249004543. The reversal of 16249004531 is 13540094261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16249004531 - 2²² = 16244810227 is a prime.

It is a super-2 number, since 2×16249004531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16249004491 and 16249004500.

It is not a weakly prime, because it can be changed into another prime (16249004521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8124502265 + 8124502266.

It is an arithmetic number, because the mean of its divisors is an integer number (8124502266).

Almost surely, 2^16249004531 is an apocalyptic number.

16249004531 is a deficient number, since it is larger than the sum of its proper divisors (1).

16249004531 is an equidigital number, since it uses as much as digits as its factorization.

16249004531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 16249004531 its reverse (13540094261), we get a palindrome (29789098792).

The spelling of 16249004531 in words is "sixteen billion, two hundred forty-nine million, four thousand, five hundred thirty-one".