15455225 has 12 divisors (see below), whose sum is σ = 19452624. Its totient is φ = 12178320.

The previous prime is 15455221. The next prime is 15455239. The reversal of 15455225 is 52255451.

It is not a de Polignac number, because 15455225 - 2² = 15455221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15455221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2939 + ... + 6288.

It is an arithmetic number, because the mean of its divisors is an integer number (1621052).

Almost surely, 2^15455225 is an apocalyptic number.

It is an amenable number.

15455225 is a deficient number, since it is larger than the sum of its proper divisors (3997399).

15455225 is an equidigital number, since it uses as much as digits as its factorization.

15455225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304 (or 9299 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 15455225 is about 3931.3133937655. The cubic root of 15455225 is about 249.0912339128.

The spelling of 15455225 in words is "fifteen million, four hundred fifty-five thousand, two hundred twenty-five".