25217275 has 12 divisors (see below), whose sum is σ = 32915800. Its totient is φ = 19111680.

The previous prime is 25217233. The next prime is 25217279. The reversal of 25217275 is 57271252.

It is not a de Polignac number, because 25217275 - 2⁷ = 25217147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25217279) 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, 26070 + ... + 27019.

Almost surely, 2^25217275 is an apocalyptic number.

25217275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25217275 is a deficient number, since it is larger than the sum of its proper divisors (7698525).

25217275 is a wasteful number, since it uses less digits than its factorization.

25217275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53118 (or 53113 counting only the distinct ones).

The product of its digits is 9800, while the sum is 31.

The square root of 25217275 is about 5021.6804956110. The cubic root of 25217275 is about 293.2464195269.

The spelling of 25217275 in words is "twenty-five million, two hundred seventeen thousand, two hundred seventy-five".