25845949 has 8 divisors (see below), whose sum is σ = 26554752. Its totient is φ = 25140960.

The previous prime is 25845889. The next prime is 25845959. The reversal of 25845949 is 94954852.

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 25845949 - 2⁹ = 25845437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25845899 and 25845908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25845959) 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, 17452 + ... + 18874.

It is an arithmetic number, because the mean of its divisors is an integer number (3319344).

Almost surely, 2^25845949 is an apocalyptic number.

It is an amenable number.

25845949 is a deficient number, since it is larger than the sum of its proper divisors (708803).

25845949 is a wasteful number, since it uses less digits than its factorization.

25845949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907.

The product of its digits is 518400, while the sum is 46.

The square root of 25845949 is about 5083.8911278665. The cubic root of 25845949 is about 295.6633506767.

The spelling of 25845949 in words is "twenty-five million, eight hundred forty-five thousand, nine hundred forty-nine".