13550039 has 2 divisors, whose sum is σ = 13550040. Its totient is φ = 13550038.

The previous prime is 13549981. The next prime is 13550057. The reversal of 13550039 is 93005531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13550039 - 2¹⁶ = 13484503 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13550539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775019 + 6775020.

It is an arithmetic number, because the mean of its divisors is an integer number (6775020).

Almost surely, 2^13550039 is an apocalyptic number.

13550039 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550039 is an equidigital number, since it uses as much as digits as its factorization.

13550039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 13550039 is about 3681.0377612842. The cubic root of 13550039 is about 238.4039875071.

The spelling of 13550039 in words is "thirteen million, five hundred fifty thousand, thirty-nine".