2050661 has 4 divisors (see below), whose sum is σ = 2053824. Its totient is φ = 2047500.

The previous prime is 2050639. The next prime is 2050679. The reversal of 2050661 is 1660502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2050661 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 (2050621) 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, 215 + ... + 2036.

It is an arithmetic number, because the mean of its divisors is an integer number (513456).

2^2050661 is an apocalyptic number.

It is an amenable number.

2050661 is a deficient number, since it is larger than the sum of its proper divisors (3163).

2050661 is an equidigital number, since it uses as much as digits as its factorization.

2050661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2050661 is about 1432.0129189361. The cubic root of 2050661 is about 127.0470613196.

The spelling of 2050661 in words is "two million, fifty thousand, six hundred sixty-one".