265620263 has 4 divisors (see below), whose sum is σ = 272098848. Its totient is φ = 259141680.

The previous prime is 265620253. The next prime is 265620283. The reversal of 265620263 is 362026562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 265620263 - 2⁸ = 265620007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265620253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3239231 + ... + 3239312.

It is an arithmetic number, because the mean of its divisors is an integer number (68024712).

Almost surely, 2^265620263 is an apocalyptic number.

265620263 is a deficient number, since it is larger than the sum of its proper divisors (6478585).

265620263 is an equidigital number, since it uses as much as digits as its factorization.

265620263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6478584.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 265620263 is about 16297.8606878326. The cubic root of 265620263 is about 642.8165764149.

The spelling of 265620263 in words is "two hundred sixty-five million, six hundred twenty thousand, two hundred sixty-three".