641233055 has 4 divisors (see below), whose sum is σ = 769479672. Its totient is φ = 512986440.

The previous prime is 641233039. The next prime is 641233057. The reversal of 641233055 is 550332146.

641233055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 641233055 - 2⁴ = 641233039 is a prime.

It is a super-2 number, since 2×641233055² = 822359661649266050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641233057) 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, 64123301 + ... + 64123310.

It is an arithmetic number, because the mean of its divisors is an integer number (192369918).

Almost surely, 2^641233055 is an apocalyptic number.

641233055 is a deficient number, since it is larger than the sum of its proper divisors (128246617).

641233055 is a wasteful number, since it uses less digits than its factorization.

641233055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128246616.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 641233055 is about 25322.5799435997. The cubic root of 641233055 is about 862.3269660586.

Subtracting from 641233055 its reverse (550332146), we obtain a palindrome (90900909).

The spelling of 641233055 in words is "six hundred forty-one million, two hundred thirty-three thousand, fifty-five".