2543273 has 8 divisors (see below), whose sum is σ = 2610696. Its totient is φ = 2476800.

The previous prime is 2543257. The next prime is 2543279. The reversal of 2543273 is 3723452.

It can be written as a sum of positive squares in 4 ways, for example, as 506944 + 2036329 = 712^2 + 1427^2 .

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 2543273 - 2⁴ = 2543257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2543279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10433 + ... + 10673.

It is an arithmetic number, because the mean of its divisors is an integer number (326337).

2^2543273 is an apocalyptic number.

It is an amenable number.

2543273 is a deficient number, since it is larger than the sum of its proper divisors (67423).

2543273 is a wasteful number, since it uses less digits than its factorization.

2543273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475.

The product of its digits is 5040, while the sum is 26.

The square root of 2543273 is about 1594.7642458997. The cubic root of 2543273 is about 136.4994789480.

The spelling of 2543273 in words is "two million, five hundred forty-three thousand, two hundred seventy-three".