55233444433255 has 16 divisors (see below), whose sum is σ = 72310138097184. Its totient is φ = 40167256596480.

The previous prime is 55233444433253. The next prime is 55233444433273.

It is a happy number.

55233444433255 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55233444433255 - 2¹ = 55233444433253 is a prime.

It is a super-2 number, since 2×55233444433255² (a number of 28 digits) 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 (55233444433253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30630162 + ... + 32383231.

It is an arithmetic number, because the mean of its divisors is an integer number (4519383631074).

Almost surely, 2^{55233444433255} is an apocalyptic number.

55233444433255 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55233444433255 is a deficient number, since it is larger than the sum of its proper divisors (17076693663929).

55233444433255 is a wasteful number, since it uses less digits than its factorization.

55233444433255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63029346.

The product of its digits is 51840000, while the sum is 52.

It can be divided in two parts, 5523344 and 4433255, that added together give a palindrome (9956599).

The spelling of 55233444433255 in words is "fifty-five trillion, two hundred thirty-three billion, four hundred forty-four million, four hundred thirty-three thousand, two hundred fifty-five".