5260781 has 4 divisors (see below), whose sum is σ = 5266332. Its totient is φ = 5255232.

The previous prime is 5260763. The next prime is 5260799. The reversal of 5260781 is 1870625.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (5260763) and next prime (5260799).

It can be written as a sum of positive squares in 2 ways, for example, as 126025 + 5134756 = 355^2 + 2266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5260781 is a prime.

It is a super-2 number, since 2×5260781² = 55351633459922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5260711) 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 in 3 ways as a sum of consecutive naturals, for example, 956 + ... + 3381.

It is an arithmetic number, because the mean of its divisors is an integer number (1316583).

Almost surely, 2^5260781 is an apocalyptic number.

It is an amenable number.

5260781 is a deficient number, since it is larger than the sum of its proper divisors (5551).

5260781 is a wasteful number, since it uses less digits than its factorization.

5260781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 5260781 is about 2293.6392480074. The cubic root of 5260781 is about 173.9202192936.

The spelling of 5260781 in words is "five million, two hundred sixty thousand, seven hundred eighty-one".