55150331544 has 192 divisors, whose sum is σ = 192444403200. Its totient is φ = 14324713920.

The previous prime is 55150331527. The next prime is 55150331573. The reversal of 55150331544 is 44513305155.

55150331544 is a `hidden beast` number, since 551 + 50 + 3 + 3 + 1 + 54 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55150331499 and 55150331508.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 32229 + ... + 333675.

It is an arithmetic number, because the mean of its divisors is an integer number (1002314600).

Almost surely, 2^55150331544 is an apocalyptic number.

55150331544 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55150331544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96222201600).

55150331544 is an abundant number, since it is smaller than the sum of its proper divisors (137294071656).

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

55150331544 is a wasteful number, since it uses less digits than its factorization.

55150331544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301491 (or 301470 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 55150331544 its reverse (44513305155), we get a palindrome (99663636699).

The spelling of 55150331544 in words is "fifty-five billion, one hundred fifty million, three hundred thirty-one thousand, five hundred forty-four".