2057256 has 24 divisors (see below), whose sum is σ = 5571930. Its totient is φ = 685728.

The previous prime is 2057233. The next prime is 2057291. The reversal of 2057256 is 6527502.

It can be written as a sum of positive squares in only one way, i.e., 2056356 + 900 = 1434^2 + 30^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14215 + ... + 14358.

2^2057256 is an apocalyptic number.

It is an amenable number.

2057256 is an abundant number, since it is smaller than the sum of its proper divisors (3514674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2057256 is a wasteful number, since it uses less digits than its factorization.

2057256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28585 (or 28578 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2057256 is about 1434.3137732031. The cubic root of 2057256 is about 127.1831115587.

The spelling of 2057256 in words is "two million, fifty-seven thousand, two hundred fifty-six".