4528257 has 8 divisors (see below), whose sum is σ = 6047520. Its totient is φ = 3013920.

The previous prime is 4528253. The next prime is 4528297. The reversal of 4528257 is 7528254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4528257 - 2² = 4528253 is a prime.

It is a super-2 number, since 2×4528257² = 41010222916098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 4² + 5⁵ + 2¹⁶ + 8⁶ + 2²² + 5⁵ + 7 .

It is not an unprimeable number, because it can be changed into a prime (4528253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2869 + ... + 4157.

It is an arithmetic number, because the mean of its divisors is an integer number (755940).

Almost surely, 2^4528257 is an apocalyptic number.

It is an amenable number.

4528257 is a deficient number, since it is larger than the sum of its proper divisors (1519263).

4528257 is a wasteful number, since it uses less digits than its factorization.

4528257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463.

The product of its digits is 22400, while the sum is 33.

The square root of 4528257 is about 2127.9701595652. The cubic root of 4528257 is about 165.4412066821.

The spelling of 4528257 in words is "four million, five hundred twenty-eight thousand, two hundred fifty-seven".