55144125564 has 192 divisors, whose sum is σ = 155241515520. Its totient is φ = 15041617920.

The previous prime is 55144125563. The next prime is 55144125577. The reversal of 55144125564 is 46552144155.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144125563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4893024 + ... + 4904280.

It is an arithmetic number, because the mean of its divisors is an integer number (808549560).

Almost surely, 2^55144125564 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 55144125564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77620757760).

55144125564 is an abundant number, since it is smaller than the sum of its proper divisors (100097389956).

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

55144125564 is a wasteful number, since it uses less digits than its factorization.

55144125564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11388 (or 11386 counting only the distinct ones).

The product of its digits is 480000, while the sum is 42.

The spelling of 55144125564 in words is "fifty-five billion, one hundred forty-four million, one hundred twenty-five thousand, five hundred sixty-four".