5223781 has 2 divisors, whose sum is σ = 5223782. Its totient is φ = 5223780.

The previous prime is 5223773. The next prime is 5223793. The reversal of 5223781 is 1873225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4661281 + 562500 = 2159^2 + 750^2 .

It is a cyclic number.

It is not a de Polignac number, because 5223781 - 2³ = 5223773 is a prime.

It is a super-2 number, since 2×5223781² = 54575775871922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5223731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2611890 + 2611891.

It is an arithmetic number, because the mean of its divisors is an integer number (2611891).

Almost surely, 2^5223781 is an apocalyptic number.

It is an amenable number.

5223781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5223781 is an equidigital number, since it uses as much as digits as its factorization.

5223781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 5223781 is about 2285.5592313480. The cubic root of 5223781 is about 173.5115224598.

The spelling of 5223781 in words is "five million, two hundred twenty-three thousand, seven hundred eighty-one".