25217283 has 32 divisors (see below), whose sum is σ = 41997312. Its totient is φ = 13104000.

The previous prime is 25217279. The next prime is 25217299. The reversal of 25217283 is 38271252.

It is not a de Polignac number, because 25217283 - 2² = 25217279 is a prime.

It is a super-2 number, since 2×25217283² = 1271822723804178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25217283.

It is not an unprimeable number, because it can be changed into a prime (25217233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18733 + ... + 20033.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^25217283 is an apocalyptic number.

25217283 is a deficient number, since it is larger than the sum of its proper divisors (16780029).

25217283 is a wasteful number, since it uses less digits than its factorization.

25217283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395.

The product of its digits is 6720, while the sum is 30.

The square root of 25217283 is about 5021.6812921570. The cubic root of 25217283 is about 293.2464505370.

The spelling of 25217283 in words is "twenty-five million, two hundred seventeen thousand, two hundred eighty-three".