2257066531 has 2 divisors, whose sum is σ = 2257066532. Its totient is φ = 2257066530.

The previous prime is 2257066451. The next prime is 2257066619. The reversal of 2257066531 is 1356607522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2257066531 is a prime.

It is a super-2 number, since 2×2257066531² = 10188698650720747922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2257166531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128533265 + 1128533266.

It is an arithmetic number, because the mean of its divisors is an integer number (1128533266).

Almost surely, 2^2257066531 is an apocalyptic number.

2257066531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257066531 is an equidigital number, since it uses as much as digits as its factorization.

2257066531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 2257066531 is about 47508.5942856658. The cubic root of 2257066531 is about 1311.7410819983.

The spelling of 2257066531 in words is "two billion, two hundred fifty-seven million, sixty-six thousand, five hundred thirty-one".