55244436 has 96 divisors (see below), whose sum is σ = 147329280. Its totient is φ = 15983616.

The previous prime is 55244417. The next prime is 55244437. The reversal of 55244436 is 63444255.

It is a junction number, because it is equal to n+sod(n) for n = 55244397 and 55244406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55244437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319246 + ... + 319418.

It is an arithmetic number, because the mean of its divisors is an integer number (1534680).

Almost surely, 2^55244436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55244436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73664640).

55244436 is an abundant number, since it is smaller than the sum of its proper divisors (92084844).

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

55244436 is a wasteful number, since it uses less digits than its factorization.

55244436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 303 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 55244436 is about 7432.6600890933. The cubic root of 55244436 is about 380.8577944228.

The spelling of 55244436 in words is "fifty-five million, two hundred forty-four thousand, four hundred thirty-six".