13100553 has 12 divisors (see below), whose sum is σ = 19434948. Its totient is φ = 8497440.

The previous prime is 13100539. The next prime is 13100561. The reversal of 13100553 is 35500131.

It is a happy number.

13100553 is a `hidden beast` number, since 13 + 100 + 553 = 666.

13100553 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5745609 + 7354944 = 2397^2 + 2712^2 .

It is not a de Polignac number, because 13100553 - 2¹³ = 13092361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13100513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19338 + ... + 20003.

It is an arithmetic number, because the mean of its divisors is an integer number (1619579).

Almost surely, 2^13100553 is an apocalyptic number.

It is an amenable number.

13100553 is a deficient number, since it is larger than the sum of its proper divisors (6334395).

13100553 is a wasteful number, since it uses less digits than its factorization.

13100553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39384 (or 39381 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 13100553 is about 3619.4686074063. The cubic root of 13100553 is about 235.7381527978.

Adding to 13100553 its reverse (35500131), we get a palindrome (48600684).

The spelling of 13100553 in words is "thirteen million, one hundred thousand, five hundred fifty-three".