54120166 has 4 divisors (see below), whose sum is σ = 81180252. Its totient is φ = 27060082.

The previous prime is 54120139. The next prime is 54120167. The reversal of 54120166 is 66102145.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 54120166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54120167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13530040 + ... + 13530043.

It is an arithmetic number, because the mean of its divisors is an integer number (20295063).

Almost surely, 2^54120166 is an apocalyptic number.

54120166 is a deficient number, since it is larger than the sum of its proper divisors (27060086).

54120166 is a wasteful number, since it uses less digits than its factorization.

54120166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27060085.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 54120166 is about 7356.6409454315. The cubic root of 54120166 is about 378.2564770212.

The spelling of 54120166 in words is "fifty-four million, one hundred twenty thousand, one hundred sixty-six".