55655166 has 16 divisors (see below), whose sum is σ = 127211904. Its totient is φ = 15901464.

The previous prime is 55655143. The next prime is 55655177. The reversal of 55655166 is 66155655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662520 + ... + 662603.

It is an arithmetic number, because the mean of its divisors is an integer number (7950744).

Almost surely, 2^55655166 is an apocalyptic number.

55655166 is an abundant number, since it is smaller than the sum of its proper divisors (71556738).

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

55655166 is a wasteful number, since it uses less digits than its factorization.

55655166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325135.

The product of its digits is 135000, while the sum is 39.

The square root of 55655166 is about 7460.2390042143. The cubic root of 55655166 is about 381.7993290114.

It can be divided in two parts, 5565 and 5166, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 55655166 in words is "fifty-five million, six hundred fifty-five thousand, one hundred sixty-six".