1823521050 has 72 divisors (see below), whose sum is σ = 5276071164. Its totient is φ = 448865280.

The previous prime is 1823521019. The next prime is 1823521097. The reversal of 1823521050 is 501253281.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 109809441 + 1713711609 = 10479^2 + 41397^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 150007 + ... + 161706.

Almost surely, 2^1823521050 is an apocalyptic number.

1823521050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1823521050 is an abundant number, since it is smaller than the sum of its proper divisors (3452550114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1823521050 is a wasteful number, since it uses less digits than its factorization.

1823521050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311744 (or 311736 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1823521050 is about 42702.7054178070. The cubic root of 1823521050 is about 1221.7159964951.

Subtracting from 1823521050 its reverse (501253281), we obtain a square (1322267769 = 36363²).

The spelling of 1823521050 in words is "one billion, eight hundred twenty-three million, five hundred twenty-one thousand, fifty".