55645226444 has 12 divisors (see below), whose sum is σ = 97426593264. Its totient is φ = 27809056944.

The previous prime is 55645226437. The next prime is 55645226453. The reversal of 55645226444 is 44462254655.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3379832 + ... + 3396255.

It is an arithmetic number, because the mean of its divisors is an integer number (8118882772).

Almost surely, 2^55645226444 is an apocalyptic number.

It is an amenable number.

55645226444 is a deficient number, since it is larger than the sum of its proper divisors (41781366820).

55645226444 is a wasteful number, since it uses less digits than its factorization.

55645226444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778144 (or 6778142 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 47.

The spelling of 55645226444 in words is "fifty-five billion, six hundred forty-five million, two hundred twenty-six thousand, four hundred forty-four".