4265257 has 4 divisors (see below), whose sum is σ = 4270420. Its totient is φ = 4260096.

The previous prime is 4265231. The next prime is 4265263. The reversal of 4265257 is 7525624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3426201 + 839056 = 1851^2 + 916^2 .

It is a 3-Lehmer number, since φ(4265257) divides (4265257-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4265257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4265207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032 + ... + 3097.

It is an arithmetic number, because the mean of its divisors is an integer number (1067605).

Almost surely, 2^4265257 is an apocalyptic number.

4265257 is the 1033-rd decagonal number.

It is an amenable number.

4265257 is a deficient number, since it is larger than the sum of its proper divisors (5163).

4265257 is a wasteful number, since it uses less digits than its factorization.

4265257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162.

The product of its digits is 16800, while the sum is 31.

The square root of 4265257 is about 2065.2498638179. The cubic root of 4265257 is about 162.1741890031.

The spelling of 4265257 in words is "four million, two hundred sixty-five thousand, two hundred fifty-seven".