25255391 has 8 divisors (see below), whose sum is σ = 28898304. Its totient is φ = 21621240.

The previous prime is 25255367. The next prime is 25255393. The reversal of 25255391 is 19355252.

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 25255391 - 2¹⁴ = 25239007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25255393) 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, 6086 + ... + 9356.

It is an arithmetic number, because the mean of its divisors is an integer number (3612288).

Almost surely, 2^25255391 is an apocalyptic number.

25255391 is a deficient number, since it is larger than the sum of its proper divisors (3642913).

25255391 is a wasteful number, since it uses less digits than its factorization.

25255391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381.

The product of its digits is 13500, while the sum is 32.

The square root of 25255391 is about 5025.4742064804. The cubic root of 25255391 is about 293.3940928143.

The spelling of 25255391 in words is "twenty-five million, two hundred fifty-five thousand, three hundred ninety-one".