13551808 has 14 divisors (see below), whose sum is σ = 26891996. Its totient is φ = 6775872.

The previous prime is 13551803. The next prime is 13551809. The reversal of 13551808 is 80815531.

It is a self number, because there is not a number n which added to its sum of digits gives 13551808.

It is not an unprimeable number, because it can be changed into a prime (13551803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105810 + ... + 105937.

Almost surely, 2^13551808 is an apocalyptic number.

It is an amenable number.

13551808 is a deficient number, since it is larger than the sum of its proper divisors (13340188).

13551808 is an equidigital number, since it uses as much as digits as its factorization.

13551808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211759 (or 211749 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 13551808 is about 3681.2780389425. The cubic root of 13551808 is about 238.4143618512.

The spelling of 13551808 in words is "thirteen million, five hundred fifty-one thousand, eight hundred eight".