25422081 has 4 divisors (see below), whose sum is σ = 33896112. Its totient is φ = 16948052.

The previous prime is 25422053. The next prime is 25422109. The reversal of 25422081 is 18022452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (25422053) and next prime (25422109).

It is a cyclic number.

It is not a de Polignac number, because 25422081 - 2⁹ = 25421569 is a prime.

It is a super-2 number, since 2×25422081² = 1292564404741122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25422041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4237011 + ... + 4237016.

It is an arithmetic number, because the mean of its divisors is an integer number (8474028).

Almost surely, 2^25422081 is an apocalyptic number.

It is an amenable number.

25422081 is a deficient number, since it is larger than the sum of its proper divisors (8474031).

25422081 is an equidigital number, since it uses as much as digits as its factorization.

25422081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8474030.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 25422081 is about 5042.0314358401. The cubic root of 25422081 is about 294.0381620137.

The spelling of 25422081 in words is "twenty-five million, four hundred twenty-two thousand, eighty-one".