265051 has 4 divisors (see below), whose sum is σ = 266400. Its totient is φ = 263704.

The previous prime is 265037. The next prime is 265079. The reversal of 265051 is 150562.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 265051 - 2¹⁷ = 133979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265021) 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, 316 + ... + 793.

It is an arithmetic number, because the mean of its divisors is an integer number (66600).

2²⁶⁵⁰⁵¹ is an apocalyptic number.

265051 is a deficient number, since it is larger than the sum of its proper divisors (1349).

265051 is a wasteful number, since it uses less digits than its factorization.

265051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 265051 is about 514.8310402452. The cubic root of 265051 is about 64.2357031380.

It can be divided in two parts, 2650 and 51, that added together give a triangular number (2701 = T₇₃).

The spelling of 265051 in words is "two hundred sixty-five thousand, fifty-one".