201985050 has 24 divisors (see below), whose sum is σ = 500923296. Its totient is φ = 53862640.

The previous prime is 201985039. The next prime is 201985051. The reversal of 201985050 is 50589102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 201984999 and 201985017.

It is not an unprimeable number, because it can be changed into a prime (201985051) 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, 673134 + ... + 673433.

It is an arithmetic number, because the mean of its divisors is an integer number (20871804).

Almost surely, 2^201985050 is an apocalyptic number.

201985050 is an abundant number, since it is smaller than the sum of its proper divisors (298938246).

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

201985050 is a wasteful number, since it uses less digits than its factorization.

201985050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346582 (or 1346577 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 201985050 is about 14212.1444546557. The cubic root of 201985050 is about 586.7319554721.

It can be divided in two parts, 201 and 985050, that multiplied together give a triangular number (197995050 = T₁₉₈₉₉).

The spelling of 201985050 in words is "two hundred one million, nine hundred eighty-five thousand, fifty".