265949506 has 16 divisors (see below), whose sum is σ = 417345984. Its totient is φ = 126864144.

The previous prime is 265949503. The next prime is 265949573. The reversal of 265949506 is 605949562.

265949506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (265949501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10981 + ... + 25543.

It is an arithmetic number, because the mean of its divisors is an integer number (26084124).

Almost surely, 2^265949506 is an apocalyptic number.

265949506 is a deficient number, since it is larger than the sum of its proper divisors (151396478).

265949506 is a wasteful number, since it uses less digits than its factorization.

265949506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14985.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 265949506 is about 16307.9583639400. The cubic root of 265949506 is about 643.0820625269.

It can be divided in two parts, 26594 and 9506, that added together give a square (36100 = 190²).

The spelling of 265949506 in words is "two hundred sixty-five million, nine hundred forty-nine thousand, five hundred six".