55577744 has 10 divisors (see below), whose sum is σ = 107681910. Its totient is φ = 27788864.

The previous prime is 55577719. The next prime is 55577789. The reversal of 55577744 is 44777555.

It can be written as a sum of positive squares in only one way, i.e., 54937744 + 640000 = 7412^2 + 800^2 .

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 55577695 and 55577704.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1736789 + ... + 1736820.

It is an arithmetic number, because the mean of its divisors is an integer number (10768191).

Almost surely, 2^55577744 is an apocalyptic number.

It is an amenable number.

55577744 is a deficient number, since it is larger than the sum of its proper divisors (52104166).

55577744 is a wasteful number, since it uses less digits than its factorization.

55577744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473617 (or 3473611 counting only the distinct ones).

The product of its digits is 686000, while the sum is 44.

The square root of 55577744 is about 7455.0482225134. The cubic root of 55577744 is about 381.6222062798.

The spelling of 55577744 in words is "fifty-five million, five hundred seventy-seven thousand, seven hundred forty-four".