13552997 has 2 divisors, whose sum is σ = 13552998. Its totient is φ = 13552996.

The previous prime is 13552991. The next prime is 13553021. The reversal of 13552997 is 79925531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13535041 + 17956 = 3679^2 + 134^2 .

It is a cyclic number.

It is not a de Polignac number, because 13552997 - 2⁶ = 13552933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13552991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6776498 + 6776499.

It is an arithmetic number, because the mean of its divisors is an integer number (6776499).

Almost surely, 2^13552997 is an apocalyptic number.

It is an amenable number.

13552997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13552997 is an equidigital number, since it uses as much as digits as its factorization.

13552997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 41.

The square root of 13552997 is about 3681.4395282281. The cubic root of 13552997 is about 238.4213342637.

The spelling of 13552997 in words is "thirteen million, five hundred fifty-two thousand, nine hundred ninety-seven".