2090050621 has 4 divisors (see below), whose sum is σ = 2101598044. Its totient is φ = 2078503200.

The previous prime is 2090050579. The next prime is 2090050631. The reversal of 2090050621 is 1260500902.

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 933302500 + 1156748121 = 30550^2 + 34011^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090050621 - 2⁷ = 2090050493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090050631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5773440 + ... + 5773801.

It is an arithmetic number, because the mean of its divisors is an integer number (525399511).

Almost surely, 2^2090050621 is an apocalyptic number.

It is an amenable number.

2090050621 is a deficient number, since it is larger than the sum of its proper divisors (11547423).

2090050621 is a wasteful number, since it uses less digits than its factorization.

2090050621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11547422.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2090050621 is about 45717.0714394525. The cubic root of 2090050621 is about 1278.5535868979.

The spelling of 2090050621 in words is "two billion, ninety million, fifty thousand, six hundred twenty-one".