24999925 has 12 divisors (see below), whose sum is σ = 31064356. Its totient is φ = 19958400.

The previous prime is 24999889. The next prime is 24999929. The reversal of 24999925 is 52999942.

It can be written as a sum of positive squares in 6 ways, for example, as 734449 + 24265476 = 857^2 + 4926^2 .

It is not a de Polignac number, because 24999925 - 2¹⁹ = 24475637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24999929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18265 + ... + 19585.

Almost surely, 2^24999925 is an apocalyptic number.

24999925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

24999925 is a deficient number, since it is larger than the sum of its proper divisors (6064431).

24999925 is a wasteful number, since it uses less digits than its factorization.

24999925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088 (or 2083 counting only the distinct ones).

The product of its digits is 524880, while the sum is 49.

The square root of 24999925 is about 4999.9924999944. The cubic root of 24999925 is about 292.4014814192.

The spelling of 24999925 in words is "twenty-four million, nine hundred ninety-nine thousand, nine hundred twenty-five".