12500000531 has 2 divisors, whose sum is σ = 12500000532. Its totient is φ = 12500000530.

The previous prime is 12500000521. The next prime is 12500000593. The reversal of 12500000531 is 13500000521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12500000531 - 2⁶ = 12500000467 is a prime.

It is a super-2 number, since 2×12500000531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12500000521) 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, 6250000265 + 6250000266.

It is an arithmetic number, because the mean of its divisors is an integer number (6250000266).

Almost surely, 2^12500000531 is an apocalyptic number.

12500000531 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500000531 is an equidigital number, since it uses as much as digits as its factorization.

12500000531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 17.

The spelling of 12500000531 in words is "twelve billion, five hundred million, five hundred thirty-one", and thus it is an aban number.