13550655 has 16 divisors (see below), whose sum is σ = 21726720. Its totient is φ = 7211808.

The previous prime is 13550651. The next prime is 13550659. The reversal of 13550655 is 55605531.

It is an interprime number because it is at equal distance from previous prime (13550651) and next prime (13550659).

It is not a de Polignac number, because 13550655 - 2² = 13550651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13550651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13294 + ... + 14276.

It is an arithmetic number, because the mean of its divisors is an integer number (1357920).

Almost surely, 2^13550655 is an apocalyptic number.

13550655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13550655 is a deficient number, since it is larger than the sum of its proper divisors (8176065).

13550655 is an equidigital number, since it uses as much as digits as its factorization.

13550655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 13550655 is about 3681.1214323899. The cubic root of 13550655 is about 238.4076001567.

The spelling of 13550655 in words is "thirteen million, five hundred fifty thousand, six hundred fifty-five".