25016081 has 8 divisors (see below), whose sum is σ = 25300704. Its totient is φ = 24733440.

The previous prime is 25016077. The next prime is 25016093. The reversal of 25016081 is 18061052.

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 25016081 - 2² = 25016077 is a prime.

It is a super-2 number, since 2×25016081² = 1251608617197122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25016011) 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, 43526 + ... + 44096.

It is an arithmetic number, because the mean of its divisors is an integer number (3162588).

Almost surely, 2^25016081 is an apocalyptic number.

It is an amenable number.

25016081 is a deficient number, since it is larger than the sum of its proper divisors (284623).

25016081 is a wasteful number, since it uses less digits than its factorization.

25016081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 25016081 is about 5001.6078414846. The cubic root of 25016081 is about 292.4644552225.

The spelling of 25016081 in words is "twenty-five million, sixteen thousand, eighty-one".