25032081 has 8 divisors (see below), whose sum is σ = 33639424. Its totient is φ = 16556400.

The previous prime is 25032067. The next prime is 25032083. The reversal of 25032081 is 18023052.

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

It is not a de Polignac number, because 25032081 - 2¹⁸ = 24769937 is a prime.

It is a super-2 number, since 2×25032081² = 1253210158381122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25032083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32470 + ... + 33231.

It is an arithmetic number, because the mean of its divisors is an integer number (4204928).

Almost surely, 2^25032081 is an apocalyptic number.

It is an amenable number.

25032081 is a deficient number, since it is larger than the sum of its proper divisors (8607343).

25032081 is a wasteful number, since it uses less digits than its factorization.

25032081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65831.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25032081 is about 5003.2070714693. The cubic root of 25032081 is about 292.5267942435.

The spelling of 25032081 in words is "twenty-five million, thirty-two thousand, eighty-one".