2021445250 has 32 divisors (see below), whose sum is σ = 4128164352. Its totient is φ = 735070000.

The previous prime is 2021445247. The next prime is 2021445259. The reversal of 2021445250 is 525441202.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2021445259) 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, 364786 + ... + 370285.

It is an arithmetic number, because the mean of its divisors is an integer number (129005136).

Almost surely, 2^2021445250 is an apocalyptic number.

2021445250 is an abundant number, since it is smaller than the sum of its proper divisors (2106719102).

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

2021445250 is a wasteful number, since it uses less digits than its factorization.

2021445250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735099 (or 735089 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2021445250 is about 44960.4854288741. The cubic root of 2021445250 is about 1264.4082699639.

Adding to 2021445250 its reverse (525441202), we get a palindrome (2546886452).

The spelling of 2021445250 in words is "two billion, twenty-one million, four hundred forty-five thousand, two hundred fifty".