1852885521 has 12 divisors (see below), whose sum is σ = 2700076548. Its totient is φ = 1224324864.

The previous prime is 1852885511. The next prime is 1852885537. The reversal of 1852885521 is 1255882581.

1852885521 is a `hidden beast` number, since 18 + 5 + 2 + 88 + 552 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92160000 + 1760725521 = 9600^2 + 41961^2 .

It is not a de Polignac number, because 1852885521 - 2¹⁹ = 1852361233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1852885511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 909940 + ... + 911973.

It is an arithmetic number, because the mean of its divisors is an integer number (225006379).

Almost surely, 2^1852885521 is an apocalyptic number.

It is an amenable number.

1852885521 is a deficient number, since it is larger than the sum of its proper divisors (847191027).

1852885521 is a wasteful number, since it uses less digits than its factorization.

1852885521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822032 (or 1822029 counting only the distinct ones).

The product of its digits is 256000, while the sum is 45.

The square root of 1852885521 is about 43045.1567658895. The cubic root of 1852885521 is about 1228.2389412302.

The spelling of 1852885521 in words is "one billion, eight hundred fifty-two million, eight hundred eighty-five thousand, five hundred twenty-one".