2050020721 has 8 divisors (see below), whose sum is σ = 2343328064. Its totient is φ = 1756825200.

The previous prime is 2050020719. The next prime is 2050020727. The reversal of 2050020721 is 1270200502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2050020721 - 2¹ = 2050020719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2050020727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15931 + ... + 65983.

It is an arithmetic number, because the mean of its divisors is an integer number (292916008).

Almost surely, 2^2050020721 is an apocalyptic number.

It is an amenable number.

2050020721 is a deficient number, since it is larger than the sum of its proper divisors (293307343).

2050020721 is an equidigital number, since it uses as much as digits as its factorization.

2050020721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55911.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2050020721 is about 45277.1545152740. The cubic root of 2050020721 is about 1270.3383728544.

The spelling of 2050020721 in words is "two billion, fifty million, twenty thousand, seven hundred twenty-one".