13557899 has 2 divisors, whose sum is σ = 13557900. Its totient is φ = 13557898.

The previous prime is 13557893. The next prime is 13557917. The reversal of 13557899 is 99875531.

13557899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13557899 - 2⁴ = 13557883 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (13557893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6778949 + 6778950.

It is an arithmetic number, because the mean of its divisors is an integer number (6778950).

Almost surely, 2^13557899 is an apocalyptic number.

13557899 is a deficient number, since it is larger than the sum of its proper divisors (1).

13557899 is an equidigital number, since it uses as much as digits as its factorization.

13557899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 47.

The square root of 13557899 is about 3682.1052402125. The cubic root of 13557899 is about 238.4500757664.

The spelling of 13557899 in words is "thirteen million, five hundred fifty-seven thousand, eight hundred ninety-nine".