25690255 has 8 divisors (see below), whose sum is σ = 30898512. Its totient is φ = 20505408.

The previous prime is 25690229. The next prime is 25690277. The reversal of 25690255 is 55209652.

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 25690255 - 2¹⁵ = 25657487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25690255.

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, 3337 + ... + 7906.

It is an arithmetic number, because the mean of its divisors is an integer number (3862314).

Almost surely, 2^25690255 is an apocalyptic number.

25690255 is a deficient number, since it is larger than the sum of its proper divisors (5208257).

25690255 is a wasteful number, since it uses less digits than its factorization.

25690255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11705.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 25690255 is about 5068.5555141480. Note that the first 4 decimals coincide. The cubic root of 25690255 is about 295.0684701739.

The spelling of 25690255 in words is "twenty-five million, six hundred ninety thousand, two hundred fifty-five".