265057 has 4 divisors (see below), whose sum is σ = 285460. Its totient is φ = 244656.

The previous prime is 265037. The next prime is 265079. The reversal of 265057 is 750562.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750562 = 2 ⋅375281.

It can be written as a sum of positive squares in 2 ways, for example, as 156816 + 108241 = 396^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 265057 - 2¹¹ = 263009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265007) 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 3 ways as a sum of consecutive naturals, for example, 10182 + ... + 10207.

It is an arithmetic number, because the mean of its divisors is an integer number (71365).

2²⁶⁵⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

265057 is a deficient number, since it is larger than the sum of its proper divisors (20403).

265057 is a wasteful number, since it uses less digits than its factorization.

265057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20402.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 265057 is about 514.8368673667. The cubic root of 265057 is about 64.2361878388.

The spelling of 265057 in words is "two hundred sixty-five thousand, fifty-seven".