12953557 has 2 divisors, whose sum is σ = 12953558. Its totient is φ = 12953556.

The previous prime is 12953543. The next prime is 12953593. The reversal of 12953557 is 75535921.

It is a happy number.

12953557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7150276 + 5803281 = 2674^2 + 2409^2 .

It is an emirp because it is prime and its reverse (75535921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12953557 is a prime.

It is a super-4 number, since 4×12953557⁴ (a number of 30 digits) contains 4444 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12953537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6476778 + 6476779.

It is an arithmetic number, because the mean of its divisors is an integer number (6476779).

Almost surely, 2^12953557 is an apocalyptic number.

It is an amenable number.

12953557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12953557 is an equidigital number, since it uses as much as digits as its factorization.

12953557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47250, while the sum is 37.

The square root of 12953557 is about 3599.1050276423. The cubic root of 12953557 is about 234.8531268756.

The spelling of 12953557 in words is "twelve million, nine hundred fifty-three thousand, five hundred fifty-seven".