55000444 has 6 divisors (see below), whose sum is σ = 96250784. Its totient is φ = 27500220.

The previous prime is 55000403. The next prime is 55000469. The reversal of 55000444 is 44400055.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6875052 + ... + 6875059.

Almost surely, 2^55000444 is an apocalyptic number.

It is an amenable number.

55000444 is a deficient number, since it is larger than the sum of its proper divisors (41250340).

55000444 is a wasteful number, since it uses less digits than its factorization.

55000444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13750115 (or 13750113 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 55000444 is about 7416.2284215091. The cubic root of 55000444 is about 380.2962694133.

Adding to 55000444 its reverse (44400055), we get a palindrome (99400499).

The spelling of 55000444 in words is "fifty-five million, four hundred forty-four", and thus it is an aban number.