13088557 has 2 divisors, whose sum is σ = 13088558. Its totient is φ = 13088556.

The previous prime is 13088533. The next prime is 13088573. The reversal of 13088557 is 75588031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7733961 + 5354596 = 2781^2 + 2314^2 .

It is an emirp because it is prime and its reverse (75588031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13088557 - 2¹¹ = 13086509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13088507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6544278 + 6544279.

It is an arithmetic number, because the mean of its divisors is an integer number (6544279).

Almost surely, 2^13088557 is an apocalyptic number.

It is an amenable number.

13088557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13088557 is an equidigital number, since it uses as much as digits as its factorization.

13088557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 13088557 is about 3617.8110785391. The cubic root of 13088557 is about 235.6661767399. Note that the first 3 decimals are identical.

The spelling of 13088557 in words is "thirteen million, eighty-eight thousand, five hundred fifty-seven".