13000553 has 2 divisors, whose sum is σ = 13000554. Its totient is φ = 13000552.

The previous prime is 13000511. The next prime is 13000583. The reversal of 13000553 is 35500031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8369449 + 4631104 = 2893^2 + 2152^2 .

It is a cyclic number.

It is not a de Polignac number, because 13000553 - 2⁶ = 13000489 is a prime.

It is not a weakly prime, because it can be changed into another prime (13000583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500276 + 6500277.

It is an arithmetic number, because the mean of its divisors is an integer number (6500277).

Almost surely, 2^13000553 is an apocalyptic number.

It is an amenable number.

13000553 is a deficient number, since it is larger than the sum of its proper divisors (1).

13000553 is an equidigital number, since it uses as much as digits as its factorization.

13000553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 13000553 is about 3605.6279619506. The cubic root of 13000553 is about 235.1368027968.

Adding to 13000553 its reverse (35500031), we get a palindrome (48500584).

The spelling of 13000553 in words is "thirteen million, five hundred fifty-three", and thus it is an aban number.