265501712055 has 16 divisors (see below), whose sum is σ = 426565412064. Its totient is φ = 141013355520.

The previous prime is 265501712053. The next prime is 265501712071. The reversal of 265501712055 is 550217105562.

It is not a de Polignac number, because 265501712055 - 2¹ = 265501712053 is a prime.

It is a super-2 number, since 2×265501712055² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265501712053) 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, 36718614 + ... + 36725843.

It is an arithmetic number, because the mean of its divisors is an integer number (26660338254).

Almost surely, 2^265501712055 is an apocalyptic number.

265501712055 is a deficient number, since it is larger than the sum of its proper divisors (161063700009).

265501712055 is a wasteful number, since it uses less digits than its factorization.

265501712055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73444706.

The product of its (nonzero) digits is 105000, while the sum is 39.

The spelling of 265501712055 in words is "two hundred sixty-five billion, five hundred one million, seven hundred twelve thousand, fifty-five".