55005244 has 18 divisors (see below), whose sum is σ = 111975360. Its totient is φ = 23573592.

The previous prime is 55005241. The next prime is 55005263. The reversal of 55005244 is 44250055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140124 + ... + 140515.

Almost surely, 2^55005244 is an apocalyptic number.

It is an amenable number.

55005244 is an abundant number, since it is smaller than the sum of its proper divisors (56970116).

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

55005244 is a wasteful number, since it uses less digits than its factorization.

55005244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280657 (or 280648 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 55005244 is about 7416.5520290766. The cubic root of 55005244 is about 380.3073321664.

Adding to 55005244 its reverse (44250055), we get a palindrome (99255299).

The spelling of 55005244 in words is "fifty-five million, five thousand, two hundred forty-four".