55626144 has 192 divisors, whose sum is σ = 179988480. Its totient is φ = 14699520.

The previous prime is 55626113. The next prime is 55626149. The reversal of 55626144 is 44162655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55626149) 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, 911874 + ... + 911934.

It is an arithmetic number, because the mean of its divisors is an integer number (937440).

Almost surely, 2^55626144 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 55626144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89994240).

55626144 is an abundant number, since it is smaller than the sum of its proper divisors (124362336).

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

55626144 is a wasteful number, since it uses less digits than its factorization.

55626144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 155 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 55626144 is about 7458.2936386281. The cubic root of 55626144 is about 381.7329529825.

Adding to 55626144 its reverse (44162655), we get a palindrome (99788799).

The spelling of 55626144 in words is "fifty-five million, six hundred twenty-six thousand, one hundred forty-four".