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5397257 = 25721001
BaseRepresentation
bin10100100101101100001001
3101011012122102
4110211230021
52340203012
6311403145
763606305
oct24455411
911135572
105397257
113057048
1219834b5
13116c858
14a06d05
157192c2
hex525b09

5397257 has 4 divisors (see below), whose sum is σ = 5418516. Its totient is φ = 5376000.

The previous prime is 5397251. The next prime is 5397283. The reversal of 5397257 is 7527935.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7527935 = 51505587.

It can be written as a sum of positive squares in 2 ways, for example, as 3644281 + 1752976 = 1909^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 5397257 - 28 = 5397001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5397257.

It is not an unprimeable number, because it can be changed into a prime (5397251) 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, 10244 + ... + 10757.

It is an arithmetic number, because the mean of its divisors is an integer number (1354629).

Almost surely, 25397257 is an apocalyptic number.

It is an amenable number.

5397257 is a deficient number, since it is larger than the sum of its proper divisors (21259).

5397257 is a wasteful number, since it uses less digits than its factorization.

5397257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21258.

The product of its digits is 66150, while the sum is 38.

The square root of 5397257 is about 2323.1997331267. The cubic root of 5397257 is about 175.4113534072.

The spelling of 5397257 in words is "five million, three hundred ninety-seven thousand, two hundred fifty-seven".

Divisors: 1 257 21001 5397257