55392166 has 4 divisors (see below), whose sum is σ = 83088252. Its totient is φ = 27696082.

The previous prime is 55392131. The next prime is 55392167. The reversal of 55392166 is 66129355.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55392167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13848040 + ... + 13848043.

It is an arithmetic number, because the mean of its divisors is an integer number (20772063).

Almost surely, 2^55392166 is an apocalyptic number.

55392166 is a deficient number, since it is larger than the sum of its proper divisors (27696086).

55392166 is a wasteful number, since it uses less digits than its factorization.

55392166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696085.

The product of its digits is 48600, while the sum is 37.

The square root of 55392166 is about 7442.5913497921. The cubic root of 55392166 is about 381.1969781679.

The spelling of 55392166 in words is "fifty-five million, three hundred ninety-two thousand, one hundred sixty-six".