265575066 has 16 divisors (see below), whose sum is σ = 554243904. Its totient is φ = 84676064.

The previous prime is 265575059. The next prime is 265575091. The reversal of 265575066 is 660575562.

It is a happy number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962091 + ... + 962366.

It is an arithmetic number, because the mean of its divisors is an integer number (34640244).

Almost surely, 2^265575066 is an apocalyptic number.

265575066 is an abundant number, since it is smaller than the sum of its proper divisors (288668838).

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

265575066 is a wasteful number, since it uses less digits than its factorization.

265575066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924485.

The product of its (nonzero) digits is 378000, while the sum is 42.

The square root of 265575066 is about 16296.4740358152. The cubic root of 265575066 is about 642.7801145520.

The spelling of 265575066 in words is "two hundred sixty-five million, five hundred seventy-five thousand, sixty-six".