Search a number
-
+
255219953 = 463551231
BaseRepresentation
bin11110011011001…
…01100011110001
3122210020111221212
433031211203301
51010314014303
641154125505
76216222332
oct1715454361
9583214855
10255219953
1112107958a
1271580895
1340b4c631
1425c78289
1517615ad8
hexf3658f1

255219953 has 4 divisors (see below), whose sum is σ = 255771648. Its totient is φ = 254668260.

The previous prime is 255219949. The next prime is 255219977. The reversal of 255219953 is 359912552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255219953 - 22 = 255219949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255219953.

It is not an unprimeable number, because it can be changed into a prime (255216953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275153 + ... + 276078.

It is an arithmetic number, because the mean of its divisors is an integer number (63942912).

Almost surely, 2255219953 is an apocalyptic number.

It is an amenable number.

255219953 is a deficient number, since it is larger than the sum of its proper divisors (551695).

255219953 is an equidigital number, since it uses as much as digits as its factorization.

255219953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551694.

The product of its digits is 121500, while the sum is 41.

The square root of 255219953 is about 15975.6049337732. The cubic root of 255219953 is about 634.3148441037.

The spelling of 255219953 in words is "two hundred fifty-five million, two hundred nineteen thousand, nine hundred fifty-three".

Divisors: 1 463 551231 255219953