54997222 has 8 divisors (see below), whose sum is σ = 94280976. Its totient is φ = 23570232.

The previous prime is 54997181. The next prime is 54997231. The reversal of 54997222 is 22279945.

54997222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1964173 + ... + 1964200.

It is an arithmetic number, because the mean of its divisors is an integer number (11785122).

Almost surely, 2^54997222 is an apocalyptic number.

54997222 is a deficient number, since it is larger than the sum of its proper divisors (39283754).

54997222 is a wasteful number, since it uses less digits than its factorization.

54997222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928382.

The product of its digits is 90720, while the sum is 40.

The square root of 54997222 is about 7416.0111920088. The cubic root of 54997222 is about 380.2888431793.

It can be divided in two parts, 5499 and 7222, that added together give a palindrome (12721).

The spelling of 54997222 in words is "fifty-four million, nine hundred ninety-seven thousand, two hundred twenty-two".