25278895 has 8 divisors (see below), whose sum is σ = 30700656. Its totient is φ = 19979136.

The previous prime is 25278889. The next prime is 25278901. The reversal of 25278895 is 59887252.

25278895 is nontrivially palindromic in base 13.

It is an interprime number because it is at equal distance from previous prime (25278889) and next prime (25278901).

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 25278895 - 2³ = 25278887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30042 + ... + 30871.

It is an arithmetic number, because the mean of its divisors is an integer number (3837582).

Almost surely, 2^25278895 is an apocalyptic number.

25278895 is a deficient number, since it is larger than the sum of its proper divisors (5421761).

25278895 is an equidigital number, since it uses as much as digits as its factorization.

25278895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61001.

The product of its digits is 403200, while the sum is 46.

The square root of 25278895 is about 5027.8121484399. The cubic root of 25278895 is about 293.4850806041.

The spelling of 25278895 in words is "twenty-five million, two hundred seventy-eight thousand, eight hundred ninety-five".