13550539 has 2 divisors, whose sum is σ = 13550540. Its totient is φ = 13550538.

The previous prime is 13550531. The next prime is 13550557. The reversal of 13550539 is 93505531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13550539 - 2³ = 13550531 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13550539.

It is not a weakly prime, because it can be changed into another prime (13550531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775269 + 6775270.

It is an arithmetic number, because the mean of its divisors is an integer number (6775270).

Almost surely, 2^13550539 is an apocalyptic number.

13550539 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550539 is an equidigital number, since it uses as much as digits as its factorization.

13550539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10125, while the sum is 31.

The square root of 13550539 is about 3681.1056762880. The cubic root of 13550539 is about 238.4069198609.

The spelling of 13550539 in words is "thirteen million, five hundred fifty thousand, five hundred thirty-nine".