55315044 has 36 divisors (see below), whose sum is σ = 142121980. Its totient is φ = 18135360.

The previous prime is 55315033. The next prime is 55315049. The reversal of 55315044 is 44051355.

It can be written as a sum of positive squares in 2 ways, for example, as 27436644 + 27878400 = 5238^2 + 5280^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 55314999 and 55315017.

It is not an unprimeable number, because it can be changed into a prime (55315049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10399 + ... + 14790.

Almost surely, 2^55315044 is an apocalyptic number.

It is an amenable number.

55315044 is an abundant number, since it is smaller than the sum of its proper divisors (86806936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55315044 is a wasteful number, since it uses less digits than its factorization.

55315044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25260 (or 25255 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 55315044 is about 7437.4084196042. The cubic root of 55315044 is about 381.0199836585.

Adding to 55315044 its reverse (44051355), we get a palindrome (99366399).

The spelling of 55315044 in words is "fifty-five million, three hundred fifteen thousand, forty-four".