265220755 has 4 divisors (see below), whose sum is σ = 318264912. Its totient is φ = 212176600.

The previous prime is 265220749. The next prime is 265220783. The reversal of 265220755 is 557022562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 557022562 = 2 ⋅278511281.

It is not a de Polignac number, because 265220755 - 2²⁷ = 131003027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265220755.

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, 26522071 + ... + 26522080.

It is an arithmetic number, because the mean of its divisors is an integer number (79566228).

Almost surely, 2^265220755 is an apocalyptic number.

265220755 is a deficient number, since it is larger than the sum of its proper divisors (53044157).

265220755 is an equidigital number, since it uses as much as digits as its factorization.

265220755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53044156.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 265220755 is about 16285.5996205236. The cubic root of 265220755 is about 642.4941371275.

The spelling of 265220755 in words is "two hundred sixty-five million, two hundred twenty thousand, seven hundred fifty-five".