24944985 has 24 divisors (see below), whose sum is σ = 46565064. Its totient is φ = 12280320.

The previous prime is 24944981. The next prime is 24944989. The reversal of 24944985 is 58944942.

It is an interprime number because it is at equal distance from previous prime (24944981) and next prime (24944989).

It can be written as a sum of positive squares in 4 ways, for example, as 974169 + 23970816 = 987^2 + 4896^2 .

It is not a de Polignac number, because 24944985 - 2² = 24944981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 24944985.

It is not an unprimeable number, because it can be changed into a prime (24944981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20736 + ... + 21905.

It is an arithmetic number, because the mean of its divisors is an integer number (1940211).

Almost surely, 2^24944985 is an apocalyptic number.

It is an amenable number.

24944985 is a deficient number, since it is larger than the sum of its proper divisors (21620079).

24944985 is a wasteful number, since it uses less digits than its factorization.

24944985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42665 (or 42662 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 24944985 is about 4994.4954700150. The cubic root of 24944985 is about 292.1871298479.

The spelling of 24944985 in words is "twenty-four million, nine hundred forty-four thousand, nine hundred eighty-five".