5040781 has 2 divisors, whose sum is σ = 5040782. Its totient is φ = 5040780.

The previous prime is 5040779. The next prime is 5040793. The reversal of 5040781 is 1870405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4447881 + 592900 = 2109^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 5040781 - 2¹ = 5040779 is a prime.

It is a super-2 number, since 2×5040781² = 50818946179922, which contains 22 as substring.

Together with 5040779, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5040731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2520390 + 2520391.

It is an arithmetic number, because the mean of its divisors is an integer number (2520391).

Almost surely, 2^5040781 is an apocalyptic number.

It is an amenable number.

5040781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5040781 is an equidigital number, since it uses as much as digits as its factorization.

5040781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 5040781 is about 2245.1683678513. The cubic root of 5040781 is about 171.4612332938.

The spelling of 5040781 in words is "five million, forty thousand, seven hundred eighty-one".