2057251 has 4 divisors (see below), whose sum is σ = 2351152. Its totient is φ = 1763352.

The previous prime is 2057233. The next prime is 2057291. The reversal of 2057251 is 1527502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1527502 = 2 ⋅763751.

It is a cyclic number.

It is not a de Polignac number, because 2057251 - 2¹¹ = 2055203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2057291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146940 + ... + 146953.

It is an arithmetic number, because the mean of its divisors is an integer number (587788).

2^2057251 is an apocalyptic number.

2057251 is a deficient number, since it is larger than the sum of its proper divisors (293901).

2057251 is an equidigital number, since it uses as much as digits as its factorization.

2057251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293900.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2057251 is about 1434.3120302082. The cubic root of 2057251 is about 127.1830085224.

The spelling of 2057251 in words is "two million, fifty-seven thousand, two hundred fifty-one".