15249955 has 16 divisors (see below), whose sum is σ = 21311424. Its totient is φ = 10258560.

The previous prime is 15249929. The next prime is 15249959. The reversal of 15249955 is 55994251.

It is not a de Polignac number, because 15249955 - 2¹¹ = 15247907 is a prime.

It is a super-2 number, since 2×15249955² = 465122255004050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15249959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256 + ... + 5965.

It is an arithmetic number, because the mean of its divisors is an integer number (1331964).

Almost surely, 2^15249955 is an apocalyptic number.

15249955 is a deficient number, since it is larger than the sum of its proper divisors (6061469).

15249955 is an equidigital number, since it uses as much as digits as its factorization.

15249955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8286.

The product of its digits is 81000, while the sum is 40.

The square root of 15249955 is about 3905.1190762895. The cubic root of 15249955 is about 247.9835392734.

The spelling of 15249955 in words is "fifteen million, two hundred forty-nine thousand, nine hundred fifty-five".