24999489 has 16 divisors (see below), whose sum is σ = 37132800. Its totient is φ = 16622928.

The previous prime is 24999467. The next prime is 24999493. The reversal of 24999489 is 98499942.

It is a de Polignac number, because none of the positive numbers 2^k-24999489 is a prime.

It is a super-2 number, since 2×24999489² = 1249948900522242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24999449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11967 + ... + 13899.

It is an arithmetic number, because the mean of its divisors is an integer number (2320800).

Almost surely, 2^24999489 is an apocalyptic number.

It is an amenable number.

24999489 is a deficient number, since it is larger than the sum of its proper divisors (12133311).

24999489 is a wasteful number, since it uses less digits than its factorization.

24999489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421 (or 2415 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 24999489 is about 4999.9488997389. The cubic root of 24999489 is about 292.3997815770.

The spelling of 24999489 in words is "twenty-four million, nine hundred ninety-nine thousand, four hundred eighty-nine".