Search a number
-
+
25255255 = 521432357
BaseRepresentation
bin110000001010…
…1110101010111
31202112002200211
41200111311113
522431132010
62301150251
7424444324
oct140256527
952462624
1025255255
111328a713
12855b387
13530344c
1434d5b4b
15233d08a
hex1815d57

25255255 has 8 divisors (see below), whose sum is σ = 30333312. Its totient is φ = 20186208.

The previous prime is 25255249. The next prime is 25255271. The reversal of 25255255 is 55255252.

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 25255255 - 23 = 25255247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9537 + ... + 11893.

It is an arithmetic number, because the mean of its divisors is an integer number (3791664).

Almost surely, 225255255 is an apocalyptic number.

25255255 is a deficient number, since it is larger than the sum of its proper divisors (5078057).

25255255 is a wasteful number, since it uses less digits than its factorization.

25255255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505.

The product of its digits is 25000, while the sum is 31.

The square root of 25255255 is about 5025.4606754008. The cubic root of 25255255 is about 293.3935661721.

The spelling of 25255255 in words is "twenty-five million, two hundred fifty-five thousand, two hundred fifty-five".

Divisors: 1 5 2143 2357 10715 11785 5051051 25255255