25825855 has 8 divisors (see below), whose sum is σ = 33808464. Its totient is φ = 18782400.

The previous prime is 25825847. The next prime is 25825861. The reversal of 25825855 is 55852852.

25825855 = 429² + 430² + ... + 538².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25825855 - 2³ = 25825847 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, 234726 + ... + 234835.

It is an arithmetic number, because the mean of its divisors is an integer number (4226058).

Almost surely, 2^25825855 is an apocalyptic number.

25825855 is a deficient number, since it is larger than the sum of its proper divisors (7982609).

25825855 is a wasteful number, since it uses less digits than its factorization.

25825855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469577.

The product of its digits is 160000, while the sum is 40.

The square root of 25825855 is about 5081.9145014453. The cubic root of 25825855 is about 295.5867093989.

The spelling of 25825855 in words is "twenty-five million, eight hundred twenty-five thousand, eight hundred fifty-five".