25035281 has 2 divisors, whose sum is σ = 25035282. Its totient is φ = 25035280.

The previous prime is 25035253. The next prime is 25035289. The reversal of 25035281 is 18253052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14250625 + 10784656 = 3775^2 + 3284^2 .

It is a cyclic number.

It is not a de Polignac number, because 25035281 - 2²² = 20840977 is a prime.

It is a super-2 number, since 2×25035281² = 1253530589497922, 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 25035281.

It is not a weakly prime, because it can be changed into another prime (25035289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12517640 + 12517641.

It is an arithmetic number, because the mean of its divisors is an integer number (12517641).

Almost surely, 2^25035281 is an apocalyptic number.

It is an amenable number.

25035281 is a deficient number, since it is larger than the sum of its proper divisors (1).

25035281 is an equidigital number, since it uses as much as digits as its factorization.

25035281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 25035281 is about 5003.5268561286. The cubic root of 25035281 is about 292.5392588599.

The spelling of 25035281 in words is "twenty-five million, thirty-five thousand, two hundred eighty-one".