54961818 has 16 divisors (see below), whose sum is σ = 110484000. Its totient is φ = 18227216.

The previous prime is 54961817. The next prime is 54961883. The reversal of 54961818 is 81816945.

54961818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 54961818.

It is not an unprimeable number, because it can be changed into a prime (54961817) 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 7 ways as a sum of consecutive naturals, for example, 22068 + ... + 24431.

It is an arithmetic number, because the mean of its divisors is an integer number (6905250).

Almost surely, 2^54961818 is an apocalyptic number.

54961818 is an abundant number, since it is smaller than the sum of its proper divisors (55522182).

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

54961818 is a wasteful number, since it uses less digits than its factorization.

54961818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46701.

The product of its digits is 69120, while the sum is 42.

The square root of 54961818 is about 7413.6238102564. The cubic root of 54961818 is about 380.2072230792.

The spelling of 54961818 in words is "fifty-four million, nine hundred sixty-one thousand, eight hundred eighteen".