13755613 has 4 divisors (see below), whose sum is σ = 13832640. Its totient is φ = 13678588.

The previous prime is 13755607. The next prime is 13755617. The reversal of 13755613 is 31655731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31655731 = 41 ⋅772091.

It is a cyclic number.

It is not a de Polignac number, because 13755613 - 2⁹ = 13755101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13755617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38245 + ... + 38602.

It is an arithmetic number, because the mean of its divisors is an integer number (3458160).

Almost surely, 2^13755613 is an apocalyptic number.

It is an amenable number.

13755613 is a deficient number, since it is larger than the sum of its proper divisors (77027).

13755613 is an equidigital number, since it uses as much as digits as its factorization.

13755613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77026.

The product of its digits is 9450, while the sum is 31.

The square root of 13755613 is about 3708.8560230885. The cubic root of 13755613 is about 239.6035874967.

The spelling of 13755613 in words is "thirteen million, seven hundred fifty-five thousand, six hundred thirteen".