55845544 has 16 divisors (see below), whose sum is σ = 110870100. Its totient is φ = 26280192.

The previous prime is 55845529. The next prime is 55845551. The reversal of 55845544 is 44554855.

It can be written as a sum of positive squares in 2 ways, for example, as 50836900 + 5008644 = 7130^2 + 2238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55845497 and 55845506.

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, 205179 + ... + 205450.

Almost surely, 2^55845544 is an apocalyptic number.

It is an amenable number.

55845544 is a deficient number, since it is larger than the sum of its proper divisors (55024556).

55845544 is a wasteful number, since it uses less digits than its factorization.

55845544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410652 (or 410648 counting only the distinct ones).

The product of its digits is 320000, while the sum is 40.

The square root of 55845544 is about 7472.9876220960. The cubic root of 55845544 is about 382.2341701742.

The spelling of 55845544 in words is "fifty-five million, eight hundred forty-five thousand, five hundred forty-four".