45256 has 8 divisors (see below), whose sum is σ = 84870. Its totient is φ = 22624.

The previous prime is 45247. The next prime is 45259. The reversal of 45256 is 65254.

It can be written as a sum of positive squares in only one way, i.e., 44100 + 1156 = 210^2 + 34^2 .

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

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 12.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (45259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821 + ... + 2836.

2⁴⁵²⁵⁶ is an apocalyptic number.

It is an amenable number.

45256 is a deficient number, since it is larger than the sum of its proper divisors (39614).

45256 is a wasteful number, since it uses less digits than its factorization.

45256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5663 (or 5659 counting only the distinct ones).

The product of its digits is 1200, while the sum is 22.

The square root of 45256 is about 212.7345764092. The cubic root of 45256 is about 35.6362547799.

The spelling of 45256 in words is "forty-five thousand, two hundred fifty-six".