15455216 has 20 divisors (see below), whose sum is σ = 34222512. Its totient is φ = 6623616.

The previous prime is 15455201. The next prime is 15455221. The reversal of 15455216 is 61255451.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68885 + ... + 69108.

Almost surely, 2^15455216 is an apocalyptic number.

15455216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

15455216 is an abundant number, since it is smaller than the sum of its proper divisors (18767296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15455216 is a wasteful number, since it uses less digits than its factorization.

15455216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138008 (or 138002 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 15455216 is about 3931.3122491097. The cubic root of 15455216 is about 249.0911855620.

The spelling of 15455216 in words is "fifteen million, four hundred fifty-five thousand, two hundred sixteen".