13550906 has 16 divisors (see below), whose sum is σ = 21331968. Its totient is φ = 6447600.

The previous prime is 13550903. The next prime is 13550909. The reversal of 13550906 is 60905531.

It is an interprime number because it is at equal distance from previous prime (13550903) and next prime (13550909).

It is not an unprimeable number, because it can be changed into a prime (13550903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1991 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (1333248).

Almost surely, 2^13550906 is an apocalyptic number.

13550906 is a deficient number, since it is larger than the sum of its proper divisors (7781062).

13550906 is a wasteful number, since it uses less digits than its factorization.

13550906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 13550906 is about 3681.1555251035. The cubic root of 13550906 is about 238.4090721628.

The spelling of 13550906 in words is "thirteen million, five hundred fifty thousand, nine hundred six".