25342681 has 8 divisors (see below), whose sum is σ = 31191104. Its totient is φ = 20051280.

The previous prime is 25342679. The next prime is 25342697. The reversal of 25342681 is 18624352.

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 25342681 - 2¹ = 25342679 is a prime.

It is a super-2 number, since 2×25342681² = 1284502960535522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25342651) 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, 139155 + ... + 139336.

It is an arithmetic number, because the mean of its divisors is an integer number (3898888).

Almost surely, 2^25342681 is an apocalyptic number.

It is an amenable number.

25342681 is a deficient number, since it is larger than the sum of its proper divisors (5848423).

25342681 is a wasteful number, since it uses less digits than its factorization.

25342681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278511.

The product of its digits is 11520, while the sum is 31.

The square root of 25342681 is about 5034.1514677252. The cubic root of 25342681 is about 293.7317226594.

The spelling of 25342681 in words is "twenty-five million, three hundred forty-two thousand, six hundred eighty-one".