265312216 has 16 divisors (see below), whose sum is σ = 535726800. Its totient is φ = 122451744.

The previous prime is 265312141. The next prime is 265312247. The reversal of 265312216 is 612213562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275436 + ... + 1275643.

It is an arithmetic number, because the mean of its divisors is an integer number (33482925).

Almost surely, 2^265312216 is an apocalyptic number.

265312216 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

265312216 is an abundant number, since it is smaller than the sum of its proper divisors (270414584).

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

265312216 is a wasteful number, since it uses less digits than its factorization.

265312216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551098 (or 2551094 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 265312216 is about 16288.4074114077. The cubic root of 265312216 is about 642.5679830359.

Adding to 265312216 its reverse (612213562), we get a palindrome (877525778).

It can be divided in two parts, 265 and 312216, that added together give a square (312481 = 559²).

The spelling of 265312216 in words is "two hundred sixty-five million, three hundred twelve thousand, two hundred sixteen".