265217655 has 16 divisors (see below), whose sum is σ = 425175264. Its totient is φ = 141173760.

The previous prime is 265217653. The next prime is 265217683. The reversal of 265217655 is 556712562.

It is not a de Polignac number, because 265217655 - 2¹ = 265217653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265217651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9154 + ... + 24783.

It is an arithmetic number, because the mean of its divisors is an integer number (26573454).

Almost surely, 2^265217655 is an apocalyptic number.

265217655 is a deficient number, since it is larger than the sum of its proper divisors (159957609).

265217655 is a wasteful number, since it uses less digits than its factorization.

265217655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34466.

The product of its digits is 126000, while the sum is 39.

The square root of 265217655 is about 16285.5044441368. The cubic root of 265217655 is about 642.4916338800.

The spelling of 265217655 in words is "two hundred sixty-five million, two hundred seventeen thousand, six hundred fifty-five".