655438833 has 24 divisors (see below), whose sum is σ = 1108388736. Its totient is φ = 365400000.

The previous prime is 655438813. The next prime is 655438837. The reversal of 655438833 is 338834556.

655438833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 655438833 - 2⁶ = 655438769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655438837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124293 + ... + 129458.

It is an arithmetic number, because the mean of its divisors is an integer number (46182864).

Almost surely, 2^655438833 is an apocalyptic number.

655438833 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

655438833 is a deficient number, since it is larger than the sum of its proper divisors (452949903).

655438833 is a wasteful number, since it uses less digits than its factorization.

655438833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253805 (or 253802 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 655438833 is about 25601.5396607313. The cubic root of 655438833 is about 868.6484643130.

The spelling of 655438833 in words is "six hundred fifty-five million, four hundred thirty-eight thousand, eight hundred thirty-three".