15224985 has 24 divisors (see below), whose sum is σ = 27780480. Its totient is φ = 7692192.

The previous prime is 15224983. The next prime is 15225031. The reversal of 15224985 is 58942251.

It is not a de Polignac number, because 15224985 - 2¹ = 15224983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15224983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8049 + ... + 9758.

It is an arithmetic number, because the mean of its divisors is an integer number (1157520).

Almost surely, 2^15224985 is an apocalyptic number.

15224985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15224985 is a deficient number, since it is larger than the sum of its proper divisors (12555495).

15224985 is a wasteful number, since it uses less digits than its factorization.

15224985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17837 (or 17834 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 15224985 is about 3901.9206808955. The cubic root of 15224985 is about 247.8481174161.

The spelling of 15224985 in words is "fifteen million, two hundred twenty-four thousand, nine hundred eighty-five".