55557317444 has 12 divisors (see below), whose sum is σ = 97347300204. Its totient is φ = 27743803104.

The previous prime is 55557317429. The next prime is 55557317447. The reversal of 55557317444 is 44471375555.

It can be written as a sum of positive squares in 2 ways, for example, as 24739514944 + 30817802500 = 157288^2 + 175550^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 55557317392 and 55557317401.

It is not an unprimeable number, because it can be changed into a prime (55557317447) 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, 8710319 + ... + 8716694.

It is an arithmetic number, because the mean of its divisors is an integer number (8112275017).

Almost surely, 2^55557317444 is an apocalyptic number.

It is an amenable number.

55557317444 is a deficient number, since it is larger than the sum of its proper divisors (41789982760).

55557317444 is a wasteful number, since it uses less digits than its factorization.

55557317444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17427814 (or 17427812 counting only the distinct ones).

The product of its digits is 5880000, while the sum is 50.

The spelling of 55557317444 in words is "fifty-five billion, five hundred fifty-seven million, three hundred seventeen thousand, four hundred forty-four".