826055249 has 4 divisors (see below), whose sum is σ = 846202980. Its totient is φ = 805907520.

The previous prime is 826055239. The next prime is 826055287. The reversal of 826055249 is 942550628.

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 423330625 + 402724624 = 20575^2 + 20068^2 .

It is a cyclic number.

It is not a de Polignac number, because 826055249 - 2²⁰ = 825006673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 20147689 = 826055249 / (8 + 2 + 6 + 0 + 5 + 5 + 2 + 4 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (826055239) 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, 10073804 + ... + 10073885.

It is an arithmetic number, because the mean of its divisors is an integer number (211550745).

Almost surely, 2^826055249 is an apocalyptic number.

It is an amenable number.

826055249 is a deficient number, since it is larger than the sum of its proper divisors (20147731).

826055249 is a wasteful number, since it uses less digits than its factorization.

826055249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20147730.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 826055249 is about 28741.1768896126. The cubic root of 826055249 is about 938.2884385793.

The spelling of 826055249 in words is "eight hundred twenty-six million, fifty-five thousand, two hundred forty-nine".