2050621 has 2 divisors, whose sum is σ = 2050622. Its totient is φ = 2050620.

The previous prime is 2050589. The next prime is 2050639. The reversal of 2050621 is 1260502.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1265625 + 784996 = 1125^2 + 886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2050621 - 2⁵ = 2050589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2050595 and 2050604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2050021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025310 + 1025311.

It is an arithmetic number, because the mean of its divisors is an integer number (1025311).

2^2050621 is an apocalyptic number.

It is an amenable number.

2050621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050621 is an equidigital number, since it uses as much as digits as its factorization.

2050621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2050621 is about 1431.9989525136. The cubic root of 2050621 is about 127.0462352582.

The spelling of 2050621 in words is "two million, fifty thousand, six hundred twenty-one".