54311550 has 48 divisors (see below), whose sum is σ = 135800832. Its totient is φ = 14364000.

The previous prime is 54311513. The next prime is 54311563. The reversal of 54311550 is 5511345.

It is a self number, because there is not a number n which added to its sum of digits gives 54311550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17625 + ... + 20475.

It is an arithmetic number, because the mean of its divisors is an integer number (2829184).

Almost surely, 2^54311550 is an apocalyptic number.

54311550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 54311550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67900416).

54311550 is an abundant number, since it is smaller than the sum of its proper divisors (81489282).

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

54311550 is a wasteful number, since it uses less digits than its factorization.

54311550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 54311550 is about 7369.6370331245. The cubic root of 54311550 is about 378.7018259373.

Adding to 54311550 its reverse (5511345), we get a palindrome (59822895).

The spelling of 54311550 in words is "fifty-four million, three hundred eleven thousand, five hundred fifty".