55612223345 has 16 divisors (see below), whose sum is σ = 76273886208. Its totient is φ = 38131248960.

The previous prime is 55612223341. The next prime is 55612223347. The reversal of 55612223345 is 54332221655.

It is not a de Polignac number, because 55612223345 - 2² = 55612223341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55612223299 and 55612223308.

It is not an unprimeable number, because it can be changed into a prime (55612223341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487067 + ... + 590303.

It is an arithmetic number, because the mean of its divisors is an integer number (4767117888).

Almost surely, 2^55612223345 is an apocalyptic number.

It is an amenable number.

55612223345 is a deficient number, since it is larger than the sum of its proper divisors (20661662863).

55612223345 is a wasteful number, since it uses less digits than its factorization.

55612223345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118640.

The product of its digits is 216000, while the sum is 38.

The spelling of 55612223345 in words is "fifty-five billion, six hundred twelve million, two hundred twenty-three thousand, three hundred forty-five".