25227081 has 48 divisors (see below), whose sum is σ = 41827968. Its totient is φ = 14515200.

The previous prime is 25227077. The next prime is 25227127. The reversal of 25227081 is 18072252.

It is not a de Polignac number, because 25227081 - 2² = 25227077 is a prime.

It is a super-2 number, since 2×25227081² = 1272811231561122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25227001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260025 + ... + 260121.

It is an arithmetic number, because the mean of its divisors is an integer number (871416).

Almost surely, 2^25227081 is an apocalyptic number.

It is an amenable number.

25227081 is a deficient number, since it is larger than the sum of its proper divisors (16600887).

25227081 is a wasteful number, since it uses less digits than its factorization.

25227081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 25227081 is about 5022.6567670905. The cubic root of 25227081 is about 293.2844252424.

The spelling of 25227081 in words is "twenty-five million, two hundred twenty-seven thousand, eighty-one".