265632243 has 4 divisors (see below), whose sum is σ = 354176328. Its totient is φ = 177088160.

The previous prime is 265632233. The next prime is 265632251. The reversal of 265632243 is 342236562.

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 265632243 - 2⁹ = 265631731 is a prime.

It is a super-2 number, since 2×265632243² = 141120977042422098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (265632233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44272038 + ... + 44272043.

It is an arithmetic number, because the mean of its divisors is an integer number (88544082).

Almost surely, 2^265632243 is an apocalyptic number.

265632243 is a deficient number, since it is larger than the sum of its proper divisors (88544085).

265632243 is an equidigital number, since it uses as much as digits as its factorization.

265632243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88544084.

The product of its digits is 51840, while the sum is 33.

The square root of 265632243 is about 16298.2282165885. The cubic root of 265632243 is about 642.8262403699.

The spelling of 265632243 in words is "two hundred sixty-five million, six hundred thirty-two thousand, two hundred forty-three".