12562513 has 2 divisors, whose sum is σ = 12562514. Its totient is φ = 12562512.

The previous prime is 12562483. The next prime is 12562519. The reversal of 12562513 is 31526521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12194064 + 368449 = 3492^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 12562513 - 2⁹ = 12562001 is a prime.

It is equal to p₈₂₂₅₁₇ and since 12562513 and 822517 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12562519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281256 + 6281257.

It is an arithmetic number, because the mean of its divisors is an integer number (6281257).

Almost surely, 2^12562513 is an apocalyptic number.

It is an amenable number.

12562513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12562513 is an equidigital number, since it uses as much as digits as its factorization.

12562513 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 12562513 is about 3544.3635535876. The cubic root of 12562513 is about 232.4656780569.

It can be divided in two parts, 1256 and 2513, that multiplied together give a triangular number (3156328 = T₂₅₁₂).

The spelling of 12562513 in words is "twelve million, five hundred sixty-two thousand, five hundred thirteen".