55660146 has 16 divisors (see below), whose sum is σ = 113909664. Its totient is φ = 18121824.

The previous prime is 55660141. The next prime is 55660147. The reversal of 55660146 is 64106655.

55660146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (55660141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 107611 + ... + 108126.

It is an arithmetic number, because the mean of its divisors is an integer number (7119354).

Almost surely, 2^55660146 is an apocalyptic number.

55660146 is an abundant number, since it is smaller than the sum of its proper divisors (58249518).

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

55660146 is a wasteful number, since it uses less digits than its factorization.

55660146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215785.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 55660146 is about 7460.5727662157. The cubic root of 55660146 is about 381.8107164176.

The spelling of 55660146 in words is "fifty-five million, six hundred sixty thousand, one hundred forty-six".