25231775 has 12 divisors (see below), whose sum is σ = 31419864. Its totient is φ = 20100000.

The previous prime is 25231771. The next prime is 25231813. The reversal of 25231775 is 57713252.

It is not a de Polignac number, because 25231775 - 2² = 25231771 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 (25231771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4265 + ... + 8285.

It is an arithmetic number, because the mean of its divisors is an integer number (2618322).

Almost surely, 2^25231775 is an apocalyptic number.

25231775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25231775 is a deficient number, since it is larger than the sum of its proper divisors (6188089).

25231775 is a wasteful number, since it uses less digits than its factorization.

25231775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282 (or 4277 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 25231775 is about 5023.1240279332. The cubic root of 25231775 is about 293.3026145804.

The spelling of 25231775 in words is "twenty-five million, two hundred thirty-one thousand, seven hundred seventy-five".