2557066453 has 2 divisors, whose sum is σ = 2557066454. Its totient is φ = 2557066452.

The previous prime is 2557066433. The next prime is 2557066483. The reversal of 2557066453 is 3546607552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2511813924 + 45252529 = 50118^2 + 6727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2557066453 - 2²⁵ = 2523512021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557066433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278533226 + 1278533227.

It is an arithmetic number, because the mean of its divisors is an integer number (1278533227).

Almost surely, 2^2557066453 is an apocalyptic number.

It is an amenable number.

2557066453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557066453 is an equidigital number, since it uses as much as digits as its factorization.

2557066453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 43.

The square root of 2557066453 is about 50567.4445963013. Note that the first 3 decimals coincide. The cubic root of 2557066453 is about 1367.4580269127.

The spelling of 2557066453 in words is "two billion, five hundred fifty-seven million, sixty-six thousand, four hundred fifty-three".