5263781 has 4 divisors (see below), whose sum is σ = 5273952. Its totient is φ = 5253612.

The previous prime is 5263771. The next prime is 5263787. The reversal of 5263781 is 1873625.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5263781 - 2¹⁰ = 5262757 is a prime.

It is a super-2 number, since 2×5263781² = 55414780831922, 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 (5263787) 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, 4265 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (1318488).

Almost surely, 2^5263781 is an apocalyptic number.

It is an amenable number.

5263781 is a deficient number, since it is larger than the sum of its proper divisors (10171).

5263781 is an equidigital number, since it uses as much as digits as its factorization.

5263781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170.

The product of its digits is 10080, while the sum is 32.

The square root of 5263781 is about 2294.2931373301. The cubic root of 5263781 is about 173.9532727832.

The spelling of 5263781 in words is "five million, two hundred sixty-three thousand, seven hundred eighty-one".