265299538 has 16 divisors (see below), whose sum is σ = 460558080. Its totient is φ = 112260096.

The previous prime is 265299521. The next prime is 265299539. The reversal of 265299538 is 835992562.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 265299491 and 265299500.

It is not an unprimeable number, because it can be changed into a prime (265299539) 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, 118831 + ... + 121042.

It is an arithmetic number, because the mean of its divisors is an integer number (28784880).

Almost surely, 2^265299538 is an apocalyptic number.

265299538 is a deficient number, since it is larger than the sum of its proper divisors (195258542).

265299538 is a wasteful number, since it uses less digits than its factorization.

265299538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239961.

The product of its digits is 1166400, while the sum is 49.

The square root of 265299538 is about 16288.0182342727. The cubic root of 265299538 is about 642.5577477909.

The spelling of 265299538 in words is "two hundred sixty-five million, two hundred ninety-nine thousand, five hundred thirty-eight".