24957985 has 8 divisors (see below), whose sum is σ = 32253480. Its totient is φ = 18430464.

The previous prime is 24957979. The next prime is 24958027. The reversal of 24957985 is 58975942.

It can be written as a sum of positive squares in 4 ways, for example, as 77841 + 24880144 = 279^2 + 4988^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 24957985 - 2⁹ = 24957473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191920 + ... + 192049.

It is an arithmetic number, because the mean of its divisors is an integer number (4031685).

Almost surely, 2^24957985 is an apocalyptic number.

It is an amenable number.

24957985 is a deficient number, since it is larger than the sum of its proper divisors (7295495).

24957985 is a wasteful number, since it uses less digits than its factorization.

24957985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383987.

The product of its digits is 907200, while the sum is 49.

The square root of 24957985 is about 4995.7967332549. The cubic root of 24957985 is about 292.2378784991.

The spelling of 24957985 in words is "twenty-four million, nine hundred fifty-seven thousand, nine hundred eighty-five".