5261823 has 30 divisors (see below), whose sum is σ = 9229064. Its totient is φ = 2829888.

The previous prime is 5261821. The next prime is 5261827. The reversal of 5261823 is 3281625.

It is not a de Polignac number, because 5261823 - 2¹ = 5261821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 309511 + ... + 309527.

Almost surely, 2^5261823 is an apocalyptic number.

5261823 is a deficient number, since it is larger than the sum of its proper divisors (3967241).

5261823 is an frugal number, since it uses more digits than its factorization.

5261823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 27 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 5261823 is about 2293.8663866930. The cubic root of 5261823 is about 173.9317012963.

It can be divided in two parts, 5261 and 823, that added together give a square (6084 = 78²).

The spelling of 5261823 in words is "five million, two hundred sixty-one thousand, eight hundred twenty-three".