Search a number
-
+
54247253 = 461117673
BaseRepresentation
bin1100111011101…
…1111101010101
310210002001020112
43032323331111
5102341403003
65214412405
71226044154
oct316737525
9123061215
1054247253
1128691845
1216201105
13b314688
1472c159b
154b683d8
hex33bbf55

54247253 has 4 divisors (see below), whose sum is σ = 54365388. Its totient is φ = 54129120.

The previous prime is 54247213. The next prime is 54247267. The reversal of 54247253 is 35274245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35274245 = 57054849.

It can be written as a sum of positive squares in 2 ways, for example, as 5484964 + 48762289 = 2342^2 + 6983^2 .

It is a cyclic number.

It is not a de Polignac number, because 54247253 - 210 = 54246229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54247213) 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, 58376 + ... + 59297.

It is an arithmetic number, because the mean of its divisors is an integer number (13591347).

Almost surely, 254247253 is an apocalyptic number.

It is an amenable number.

54247253 is a deficient number, since it is larger than the sum of its proper divisors (118135).

54247253 is a wasteful number, since it uses less digits than its factorization.

54247253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118134.

The product of its digits is 33600, while the sum is 32.

The square root of 54247253 is about 7365.2734504565. The cubic root of 54247253 is about 378.5523242423.

The spelling of 54247253 in words is "fifty-four million, two hundred forty-seven thousand, two hundred fifty-three".

Divisors: 1 461 117673 54247253