1822520275 has 24 divisors (see below), whose sum is σ = 2438040384. Its totient is φ = 1346342400.

The previous prime is 1822520251. The next prime is 1822520279. The reversal of 1822520275 is 5720252281.

It is not a de Polignac number, because 1822520275 - 2⁹ = 1822519763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1822520275.

It is not an unprimeable number, because it can be changed into a prime (1822520279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17931 + ... + 62980.

It is an arithmetic number, because the mean of its divisors is an integer number (101585016).

Almost surely, 2^1822520275 is an apocalyptic number.

1822520275 is a deficient number, since it is larger than the sum of its proper divisors (615520109).

1822520275 is a wasteful number, since it uses less digits than its factorization.

1822520275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80991 (or 80986 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 1822520275 is about 42690.9858752407. The cubic root of 1822520275 is about 1221.4924570655.

The spelling of 1822520275 in words is "one billion, eight hundred twenty-two million, five hundred twenty thousand, two hundred seventy-five".