13655533 has 2 divisors, whose sum is σ = 13655534. Its totient is φ = 13655532.

The previous prime is 13655527. The next prime is 13655561. The reversal of 13655533 is 33555631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9320809 + 4334724 = 3053^2 + 2082^2 .

It is a cyclic number.

It is not a de Polignac number, because 13655533 - 2⁹ = 13655021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13655495 and 13655504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13655513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6827766 + 6827767.

It is an arithmetic number, because the mean of its divisors is an integer number (6827767).

Almost surely, 2^13655533 is an apocalyptic number.

It is an amenable number.

13655533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13655533 is an equidigital number, since it uses as much as digits as its factorization.

13655533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20250, while the sum is 31.

The square root of 13655533 is about 3695.3393619531. The cubic root of 13655533 is about 239.0210878728.

The spelling of 13655533 in words is "thirteen million, six hundred fifty-five thousand, five hundred thirty-three".