5442781 has 2 divisors, whose sum is σ = 5442782. Its totient is φ = 5442780.

The previous prime is 5442751. The next prime is 5442817. The reversal of 5442781 is 1872445.

Together with next prime (5442817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5134756 + 308025 = 2266^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 5442781 - 2⁷ = 5442653 is a prime.

It is a super-2 number, since 2×5442781² = 59247730027922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5442751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2721390 + 2721391.

It is an arithmetic number, because the mean of its divisors is an integer number (2721391).

Almost surely, 2^5442781 is an apocalyptic number.

It is an amenable number.

5442781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5442781 is an equidigital number, since it uses as much as digits as its factorization.

5442781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 31.

The square root of 5442781 is about 2332.9768537214. The cubic root of 5442781 is about 175.9031513478.

The spelling of 5442781 in words is "five million, four hundred forty-two thousand, seven hundred eighty-one".