4521256 has 16 divisors (see below), whose sum is σ = 8536500. Its totient is φ = 2244864.

The previous prime is 4521241. The next prime is 4521299. The reversal of 4521256 is 6521254.

4521256 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 2 ways, for example, as 3865156 + 656100 = 1966^2 + 810^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 4521256.

It is an unprimeable number.

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, 705 + ... + 3088.

Almost surely, 2^4521256 is an apocalyptic number.

It is an amenable number.

4521256 is a deficient number, since it is larger than the sum of its proper divisors (4015244).

4521256 is a wasteful number, since it uses less digits than its factorization.

4521256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948 (or 3944 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 4521256 is about 2126.3245283823. The cubic root of 4521256 is about 165.3559015036.

The spelling of 4521256 in words is "four million, five hundred twenty-one thousand, two hundred fifty-six".