55012166 has 24 divisors (see below), whose sum is σ = 93640512. Its totient is φ = 24195600.

The previous prime is 55012127. The next prime is 55012171. The reversal of 55012166 is 66121055.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3836 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (3901688).

Almost surely, 2^55012166 is an apocalyptic number.

55012166 is a deficient number, since it is larger than the sum of its proper divisors (38628346).

55012166 is a wasteful number, since it uses less digits than its factorization.

55012166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388 (or 7377 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 55012166 is about 7417.0186732945. The cubic root of 55012166 is about 380.3232844450.

Subtracting 55012166 from its reverse (66121055), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 5501 and 2166, that added together give a palindrome (7667).

The spelling of 55012166 in words is "fifty-five million, twelve thousand, one hundred sixty-six".