55544412 has 96 divisors (see below), whose sum is σ = 165150720. Its totient is φ = 14109120.

The previous prime is 55544341. The next prime is 55544413. The reversal of 55544412 is 21444555.

It is a self number, because there is not a number n which added to its sum of digits gives 55544412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55544413) 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, 42789 + ... + 44067.

It is an arithmetic number, because the mean of its divisors is an integer number (1720320).

Almost surely, 2^55544412 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 55544412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82575360).

55544412 is an abundant number, since it is smaller than the sum of its proper divisors (109606308).

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

55544412 is a wasteful number, since it uses less digits than its factorization.

55544412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1349 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 55544412 is about 7452.8123550778. The cubic root of 55544412 is about 381.5459001049.

Adding to 55544412 its reverse (21444555), we get a palindrome (76988967).

The spelling of 55544412 in words is "fifty-five million, five hundred forty-four thousand, four hundred twelve".