265222553 has 4 divisors (see below), whose sum is σ = 266810880. Its totient is φ = 263634228.

The previous prime is 265222543. The next prime is 265222561. The reversal of 265222553 is 355222562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265222553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (265222543) 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, 793913 + ... + 794246.

It is an arithmetic number, because the mean of its divisors is an integer number (66702720).

Almost surely, 2^265222553 is an apocalyptic number.

It is an amenable number.

265222553 is a deficient number, since it is larger than the sum of its proper divisors (1588327).

265222553 is a wasteful number, since it uses less digits than its factorization.

265222553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588326.

The product of its digits is 36000, while the sum is 32.

The square root of 265222553 is about 16285.6548225731. The cubic root of 265222553 is about 642.4955890021.

Subtracting 265222553 from its reverse (355222562), we obtain a palindrome (90000009).

The spelling of 265222553 in words is "two hundred sixty-five million, two hundred twenty-two thousand, five hundred fifty-three".