2020251 has 24 divisors (see below), whose sum is σ = 3008320. Its totient is φ = 1202256.

The previous prime is 2020247. The next prime is 2020253. The reversal of 2020251 is 1520202.

It is not a de Polignac number, because 2020251 - 2² = 2020247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30120 + ... + 30186.

2^2020251 is an apocalyptic number.

2020251 is a deficient number, since it is larger than the sum of its proper divisors (988069).

2020251 is a wasteful number, since it uses less digits than its factorization.

2020251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 2020251 is about 1421.3553391042. The cubic root of 2020251 is about 126.4159220916.

Adding to 2020251 its reverse (1520202), we get a palindrome (3540453).

The spelling of 2020251 in words is "two million, twenty thousand, two hundred fifty-one".