12616553 has 2 divisors, whose sum is σ = 12616554. Its totient is φ = 12616552.

The previous prime is 12616547. The next prime is 12616559. The reversal of 12616553 is 35561621.

It is a balanced prime because it is at equal distance from previous prime (12616547) and next prime (12616559).

It can be written as a sum of positive squares in only one way, i.e., 12581209 + 35344 = 3547^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 12616553 - 2¹⁶ = 12551017 is a prime.

It is not a weakly prime, because it can be changed into another prime (12616559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308276 + 6308277.

It is an arithmetic number, because the mean of its divisors is an integer number (6308277).

Almost surely, 2^12616553 is an apocalyptic number.

It is an amenable number.

12616553 is a deficient number, since it is larger than the sum of its proper divisors (1).

12616553 is an equidigital number, since it uses as much as digits as its factorization.

12616553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 12616553 is about 3551.9787443058. The cubic root of 12616553 is about 232.7985327687.

The spelling of 12616553 in words is "twelve million, six hundred sixteen thousand, five hundred fifty-three".