265240535220203 has 4 divisors (see below), whose sum is σ = 265241152630608. Its totient is φ = 265239917809800.

The previous prime is 265240535220191. The next prime is 265240535220233. The reversal of 265240535220203 is 302022535042562.

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 265240535220203 - 2⁴⁰ = 264141023592427 is a prime.

It is a super-2 number, since 2×265240535220203² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265240535220233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308060351 + ... + 308920152.

It is an arithmetic number, because the mean of its divisors is an integer number (66310288157652).

Almost surely, 2^{265240535220203} is an apocalyptic number.

265240535220203 is a deficient number, since it is larger than the sum of its proper divisors (617410405).

265240535220203 is an equidigital number, since it uses as much as digits as its factorization.

265240535220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617410404.

The product of its (nonzero) digits is 864000, while the sum is 41.

The spelling of 265240535220203 in words is "two hundred sixty-five trillion, two hundred forty billion, five hundred thirty-five million, two hundred twenty thousand, two hundred three".