2557273 has 2 divisors, whose sum is σ = 2557274. Its totient is φ = 2557272.

The previous prime is 2557241. The next prime is 2557277. The reversal of 2557273 is 3727552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2474329 + 82944 = 1573^2 + 288^2 .

It is a cyclic number.

It is not a de Polignac number, because 2557273 - 2⁵ = 2557241 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 5⁴ + 5⁹ + 7² + 2¹⁶ + 7⁴ + 3¹² .

It is not a weakly prime, because it can be changed into another prime (2557277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278636 + 1278637.

It is an arithmetic number, because the mean of its divisors is an integer number (1278637).

2^2557273 is an apocalyptic number.

It is an amenable number.

2557273 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557273 is an equidigital number, since it uses as much as digits as its factorization.

2557273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14700, while the sum is 31.

The square root of 2557273 is about 1599.1475854342. The cubic root of 2557273 is about 136.7494844721.

The spelling of 2557273 in words is "two million, five hundred fifty-seven thousand, two hundred seventy-three".