2569481 has 2 divisors, whose sum is σ = 2569482. Its totient is φ = 2569480.

The previous prime is 2569477. The next prime is 2569513. The reversal of 2569481 is 1849652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2310400 + 259081 = 1520^2 + 509^2 .

It is a cyclic number.

It is not a de Polignac number, because 2569481 - 2² = 2569477 is a prime.

It is a super-2 number, since 2×2569481² = 13204465218722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2569421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1284740 + 1284741.

It is an arithmetic number, because the mean of its divisors is an integer number (1284741).

2^2569481 is an apocalyptic number.

It is an amenable number.

2569481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2569481 is an equidigital number, since it uses as much as digits as its factorization.

2569481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 2569481 is about 1602.9600743624. The cubic root of 2569481 is about 136.9667456183.

The spelling of 2569481 in words is "two million, five hundred sixty-nine thousand, four hundred eighty-one".