265090 has 24 divisors (see below), whose sum is σ = 556092. Its totient is φ = 90720.

The previous prime is 265079. The next prime is 265091. The reversal of 265090 is 90562.

It can be written as a sum of positive squares in 2 ways, for example, as 261121 + 3969 = 511^2 + 63^2 .

It is not an unprimeable number, because it can be changed into a prime (265091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220 + ... + 760.

2²⁶⁵⁰⁹⁰ is an apocalyptic number.

265090 is an abundant number, since it is smaller than the sum of its proper divisors (291002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265090 is a wasteful number, since it uses less digits than its factorization.

265090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 265090 is about 514.8689153561. The cubic root of 265090 is about 64.2388535625.

The spelling of 265090 in words is "two hundred sixty-five thousand, ninety".