55434252644 has 6 divisors (see below), whose sum is σ = 97009942134. Its totient is φ = 27717126320.

The previous prime is 55434252623. The next prime is 55434252659. The reversal of 55434252644 is 44625243455.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49996960000 + 5437292644 = 223600^2 + 73738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55434252595 and 55434252604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6929281577 + ... + 6929281584.

It is an arithmetic number, because the mean of its divisors is an integer number (16168323689).

Almost surely, 2^55434252644 is an apocalyptic number.

It is an amenable number.

55434252644 is a deficient number, since it is larger than the sum of its proper divisors (41575689490).

55434252644 is a wasteful number, since it uses less digits than its factorization.

55434252644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13858563165 (or 13858563163 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 44.

The spelling of 55434252644 in words is "fifty-five billion, four hundred thirty-four million, two hundred fifty-two thousand, six hundred forty-four".