2021565250 has 32 divisors (see below), whose sum is σ = 3837704832. Its totient is φ = 797230000.

The previous prime is 2021565239. The next prime is 2021565257. The reversal of 2021565250 is 525651202.

It is not an unprimeable number, because it can be changed into a prime (2021565257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39196 + ... + 74695.

It is an arithmetic number, because the mean of its divisors is an integer number (119928276).

Almost surely, 2^2021565250 is an apocalyptic number.

2021565250 is a deficient number, since it is larger than the sum of its proper divisors (1816139582).

2021565250 is a wasteful number, since it uses less digits than its factorization.

2021565250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113979 (or 113969 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2021565250 is about 44961.8199142339. The cubic root of 2021565250 is about 1264.4332893554.

The spelling of 2021565250 in words is "two billion, twenty-one million, five hundred sixty-five thousand, two hundred fifty".