55612223389 has 4 divisors (see below), whose sum is σ = 55613172640. Its totient is φ = 55611274140.

The previous prime is 55612223377. The next prime is 55612223417. The reversal of 55612223389 is 98332221655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55612223389 - 2⁵ = 55612223357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55612223189) 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, 380529 + ... + 505990.

It is an arithmetic number, because the mean of its divisors is an integer number (13903293160).

Almost surely, 2^55612223389 is an apocalyptic number.

It is an amenable number.

55612223389 is a deficient number, since it is larger than the sum of its proper divisors (949251).

55612223389 is an equidigital number, since it uses as much as digits as its factorization.

55612223389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949250.

The product of its digits is 777600, while the sum is 46.

The spelling of 55612223389 in words is "fifty-five billion, six hundred twelve million, two hundred twenty-three thousand, three hundred eighty-nine".