2557963 has 2 divisors, whose sum is σ = 2557964. Its totient is φ = 2557962.

The previous prime is 2557957. The next prime is 2557967. The reversal of 2557963 is 3697552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2557963 - 2⁵ = 2557931 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 5⁷ + 5⁹ + 7⁴ + 9 + 6 + 3² .

It is not a weakly prime, because it can be changed into another prime (2557967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278981 + 1278982.

It is an arithmetic number, because the mean of its divisors is an integer number (1278982).

2^2557963 is an apocalyptic number.

2557963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557963 is an equidigital number, since it uses as much as digits as its factorization.

2557963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The square root of 2557963 is about 1599.3633108209. The cubic root of 2557963 is about 136.7617825541.

The spelling of 2557963 in words is "two million, five hundred fifty-seven thousand, nine hundred sixty-three".