55312233221355 has 32 divisors (see below), whose sum is σ = 101626304106240. Its totient is φ = 25406576023680.

The previous prime is 55312233221303. The next prime is 55312233221387.

55312233221355 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55312233221355 - 2⁹ = 55312233220843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8821724652 + ... + 8821730921.

It is an arithmetic number, because the mean of its divisors is an integer number (3175822003320).

Almost surely, 2^{55312233221355} is an apocalyptic number.

55312233221355 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55312233221355 is a deficient number, since it is larger than the sum of its proper divisors (46314070884885).

55312233221355 is a wasteful number, since it uses less digits than its factorization.

55312233221355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17643455611.

The product of its digits is 810000, while the sum is 42.

It can be divided in two parts, 5531223 and 3221355, that added together give a palindrome (8752578).

The spelling of 55312233221355 in words is "fifty-five trillion, three hundred twelve billion, two hundred thirty-three million, two hundred twenty-one thousand, three hundred fifty-five".