54172812 has 48 divisors (see below), whose sum is σ = 138468960. Its totient is φ = 16407552.

The previous prime is 54172801. The next prime is 54172813. The reversal of 54172812 is 21827145.

54172812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 54172812.

It is not an unprimeable number, because it can be changed into a prime (54172813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338 + ... + 10494.

It is an arithmetic number, because the mean of its divisors is an integer number (2884770).

Almost surely, 2^54172812 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 54172812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69234480).

54172812 is an abundant number, since it is smaller than the sum of its proper divisors (84296148).

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

54172812 is a wasteful number, since it uses less digits than its factorization.

54172812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9210 (or 9208 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 54172812 is about 7360.2182032872. The cubic root of 54172812 is about 378.3790883530.

Adding to 54172812 its reverse (21827145), we get a palindrome (75999957).

The spelling of 54172812 in words is "fifty-four million, one hundred seventy-two thousand, eight hundred twelve".