5285423257 has 2 divisors, whose sum is σ = 5285423258. Its totient is φ = 5285423256.

The previous prime is 5285423237. The next prime is 5285423261. The reversal of 5285423257 is 7523245825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3565164681 + 1720258576 = 59709^2 + 41476^2 .

It is a cyclic number.

It is not a de Polignac number, because 5285423257 - 2²⁷ = 5151205529 is a prime.

It is not a weakly prime, because it can be changed into another prime (5285423237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2642711628 + 2642711629.

It is an arithmetic number, because the mean of its divisors is an integer number (2642711629).

Almost surely, 2^5285423257 is an apocalyptic number.

It is an amenable number.

5285423257 is a deficient number, since it is larger than the sum of its proper divisors (1).

5285423257 is an equidigital number, since it uses as much as digits as its factorization.

5285423257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672000, while the sum is 43.

The square root of 5285423257 is about 72700.9164797804. The cubic root of 5285423257 is about 1741.9135218896.

The spelling of 5285423257 in words is "five billion, two hundred eighty-five million, four hundred twenty-three thousand, two hundred fifty-seven".