25088281 has 2 divisors, whose sum is σ = 25088282. Its totient is φ = 25088280.

The previous prime is 25088279. The next prime is 25088291. The reversal of 25088281 is 18288052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23921881 + 1166400 = 4891^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 25088281 - 2¹ = 25088279 is a prime.

It is a super-3 number, since 3×25088281³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 25088279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25088201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12544140 + 12544141.

It is an arithmetic number, because the mean of its divisors is an integer number (12544141).

Almost surely, 2^25088281 is an apocalyptic number.

It is an amenable number.

25088281 is a deficient number, since it is larger than the sum of its proper divisors (1).

25088281 is an equidigital number, since it uses as much as digits as its factorization.

25088281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 25088281 is about 5008.8203201952. The cubic root of 25088281 is about 292.7455497664.

The spelling of 25088281 in words is "twenty-five million, eighty-eight thousand, two hundred eighty-one".