2050440521 has 4 divisors (see below), whose sum is σ = 2089128132. Its totient is φ = 2011752912.

The previous prime is 2050440517. The next prime is 2050440523. The reversal of 2050440521 is 1250440502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1368186121 + 682254400 = 36989^2 + 26120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2050440521 - 2² = 2050440517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2050440523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19343726 + ... + 19343831.

It is an arithmetic number, because the mean of its divisors is an integer number (522282033).

Almost surely, 2^2050440521 is an apocalyptic number.

It is an amenable number.

2050440521 is a deficient number, since it is larger than the sum of its proper divisors (38687611).

2050440521 is an equidigital number, since it uses as much as digits as its factorization.

2050440521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38687610.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 2050440521 is about 45281.7901700010. The cubic root of 2050440521 is about 1270.4250795636.

The spelling of 2050440521 in words is "two billion, fifty million, four hundred forty thousand, five hundred twenty-one".