2021500552 has 8 divisors (see below), whose sum is σ = 3790313550. Its totient is φ = 1010750272.

The previous prime is 2021500517. The next prime is 2021500553. The reversal of 2021500552 is 2550051202.

It can be written as a sum of positive squares in only one way, i.e., 2008294596 + 13205956 = 44814^2 + 3634^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2021500553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126343777 + ... + 126343792.

Almost surely, 2^2021500552 is an apocalyptic number.

It is an amenable number.

2021500552 is a deficient number, since it is larger than the sum of its proper divisors (1768812998).

2021500552 is a wasteful number, since it uses less digits than its factorization.

2021500552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252687575 (or 252687571 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2021500552 is about 44961.1004313729. The cubic root of 2021500552 is about 1264.4198002735.

Adding to 2021500552 its reverse (2550051202), we get a palindrome (4571551754).

The spelling of 2021500552 in words is "two billion, twenty-one million, five hundred thousand, five hundred fifty-two".