25349081 has 8 divisors (see below), whose sum is σ = 25704000. Its totient is φ = 24996400.

The previous prime is 25349053. The next prime is 25349083. The reversal of 25349081 is 18094352.

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 25349081 - 2¹⁸ = 25086937 is a prime.

It is a super-2 number, since 2×25349081² = 1285151815089122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25349083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42020 + ... + 42618.

It is an arithmetic number, because the mean of its divisors is an integer number (3213000).

Almost surely, 2^25349081 is an apocalyptic number.

It is an amenable number.

25349081 is a deficient number, since it is larger than the sum of its proper divisors (354919).

25349081 is a wasteful number, since it uses less digits than its factorization.

25349081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 25349081 is about 5034.7870858657. The cubic root of 25349081 is about 293.7564467576.

The spelling of 25349081 in words is "twenty-five million, three hundred forty-nine thousand, eighty-one".