55018146 has 32 divisors (see below), whose sum is σ = 113601600. Its totient is φ = 17752320.

The previous prime is 55018141. The next prime is 55018151. The reversal of 55018146 is 64181055.

It is an interprime number because it is at equal distance from previous prime (55018141) and next prime (55018151).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55018141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33390 + ... + 34998.

It is an arithmetic number, because the mean of its divisors is an integer number (3550050).

Almost surely, 2^55018146 is an apocalyptic number.

55018146 is an abundant number, since it is smaller than the sum of its proper divisors (58583454).

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

55018146 is a wasteful number, since it uses less digits than its factorization.

55018146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 55018146 is about 7417.4217892742. The cubic root of 55018146 is about 380.3370647352.

The spelling of 55018146 in words is "fifty-five million, eighteen thousand, one hundred forty-six".