2578273 has 2 divisors, whose sum is σ = 2578274. Its totient is φ = 2578272.

The previous prime is 2578267. The next prime is 2578297. The reversal of 2578273 is 3728752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2411809 + 166464 = 1553^2 + 408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2578273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2578253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289136 + 1289137.

It is an arithmetic number, because the mean of its divisors is an integer number (1289137).

2^2578273 is an apocalyptic number.

It is an amenable number.

2578273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2578273 is an equidigital number, since it uses as much as digits as its factorization.

2578273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 2578273 is about 1605.7001588092. The cubic root of 2578273 is about 137.1227876034.

The spelling of 2578273 in words is "two million, five hundred seventy-eight thousand, two hundred seventy-three".