25243975 has 12 divisors (see below), whose sum is σ = 31598424. Its totient is φ = 20004320.

The previous prime is 25243957. The next prime is 25243993. The reversal of 25243975 is 57934252.

It is an interprime number because it is at equal distance from previous prime (25243957) and next prime (25243993).

It is not a de Polignac number, because 25243975 - 2¹¹ = 25241927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2044 + ... + 7393.

It is an arithmetic number, because the mean of its divisors is an integer number (2633202).

Almost surely, 2^25243975 is an apocalyptic number.

25243975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25243975 is a deficient number, since it is larger than the sum of its proper divisors (6354449).

25243975 is a wasteful number, since it uses less digits than its factorization.

25243975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9554 (or 9549 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 25243975 is about 5024.3382648862. The cubic root of 25243975 is about 293.3498792607.

The spelling of 25243975 in words is "twenty-five million, two hundred forty-three thousand, nine hundred seventy-five".