5026781 has 4 divisors (see below), whose sum is σ = 5322492. Its totient is φ = 4731072.

The previous prime is 5026771. The next prime is 5026789. The reversal of 5026781 is 1876205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 3667225 = 1166^2 + 1915^2 .

It is a cyclic number.

It is not a de Polignac number, because 5026781 - 2⁶ = 5026717 is a prime.

It is a super-2 number, since 2×5026781² = 50537054443922, 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 (5026789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147830 + ... + 147863.

It is an arithmetic number, because the mean of its divisors is an integer number (1330623).

Almost surely, 2^5026781 is an apocalyptic number.

It is an amenable number.

5026781 is a deficient number, since it is larger than the sum of its proper divisors (295711).

5026781 is a wasteful number, since it uses less digits than its factorization.

5026781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295710.

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

The square root of 5026781 is about 2242.0483937685. The cubic root of 5026781 is about 171.3023503084.

The spelling of 5026781 in words is "five million, twenty-six thousand, seven hundred eighty-one".