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255412553 = 1123219323
BaseRepresentation
bin11110011100101…
…00100101001001
3122210121022011012
433032110211021
51010341200203
641202213305
76220654004
oct1716244511
9583538135
10255412553
111211a0260
1271654235
1340bb91b6
1425cc853b
1517652bd8
hexf394949

255412553 has 4 divisors (see below), whose sum is σ = 278631888. Its totient is φ = 232193220.

The previous prime is 255412513. The next prime is 255412571. The reversal of 255412553 is 355214552.

255412553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 255412553 - 212 = 255408457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255412513) 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, 11609651 + ... + 11609672.

It is an arithmetic number, because the mean of its divisors is an integer number (69657972).

Almost surely, 2255412553 is an apocalyptic number.

It is an amenable number.

255412553 is a deficient number, since it is larger than the sum of its proper divisors (23219335).

255412553 is a wasteful number, since it uses less digits than its factorization.

255412553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23219334.

The product of its digits is 30000, while the sum is 32.

The square root of 255412553 is about 15981.6317377169. The cubic root of 255412553 is about 634.4743644430.

The spelling of 255412553 in words is "two hundred fifty-five million, four hundred twelve thousand, five hundred fifty-three".

Divisors: 1 11 23219323 255412553