13550597 has 2 divisors, whose sum is σ = 13550598. Its totient is φ = 13550596.

The previous prime is 13550573. The next prime is 13550599. The reversal of 13550597 is 79505531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12630916 + 919681 = 3554^2 + 959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13550597 is a prime.

Together with 13550599, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13550599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775298 + 6775299.

It is an arithmetic number, because the mean of its divisors is an integer number (6775299).

Almost surely, 2^13550597 is an apocalyptic number.

It is an amenable number.

13550597 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550597 is an equidigital number, since it uses as much as digits as its factorization.

13550597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 13550597 is about 3681.1135543474. The cubic root of 13550597 is about 238.4072600093.

The spelling of 13550597 in words is "thirteen million, five hundred fifty thousand, five hundred ninety-seven".