2257256 has 8 divisors (see below), whose sum is σ = 4232370. Its totient is φ = 1128624.

The previous prime is 2257247. The next prime is 2257291. The reversal of 2257256 is 6527522.

It can be written as a sum of positive squares in only one way, i.e., 1188100 + 1069156 = 1090^2 + 1034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×2257256⁴ (a number of 27 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141071 + ... + 141086.

2^2257256 is an apocalyptic number.

It is an amenable number.

2257256 is a deficient number, since it is larger than the sum of its proper divisors (1975114).

2257256 is a wasteful number, since it uses less digits than its factorization.

2257256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282163 (or 282159 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 2257256 is about 1502.4167198218. The cubic root of 2257256 is about 131.1777785586.

The spelling of 2257256 in words is "two million, two hundred fifty-seven thousand, two hundred fifty-six".