25265281 has 8 divisors (see below), whose sum is σ = 26822880. Its totient is φ = 23715648.

The previous prime is 25265267. The next prime is 25265291. The reversal of 25265281 is 18256252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25265281 - 2¹⁷ = 25134209 is a prime.

It is a super-2 number, since 2×25265281² = 1276668848017922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25265291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5350 + ... + 8896.

It is an arithmetic number, because the mean of its divisors is an integer number (3352860).

Almost surely, 2^25265281 is an apocalyptic number.

It is an amenable number.

25265281 is a deficient number, since it is larger than the sum of its proper divisors (1557599).

25265281 is a wasteful number, since it uses less digits than its factorization.

25265281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983.

The product of its digits is 9600, while the sum is 31.

The square root of 25265281 is about 5026.4580969108. The cubic root of 25265281 is about 293.4323854822.

The spelling of 25265281 in words is "twenty-five million, two hundred sixty-five thousand, two hundred eighty-one".