55000146 has 16 divisors (see below), whose sum is σ = 111069504. Its totient is φ = 18155184.

The previous prime is 55000129. The next prime is 55000163. The reversal of 55000146 is 64100055.

It is a happy number.

55000146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55000129) and next prime (55000163).

It is an unprimeable number.

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, 43881 + ... + 45116.

It is an arithmetic number, because the mean of its divisors is an integer number (6941844).

Almost surely, 2^55000146 is an apocalyptic number.

55000146 is an abundant number, since it is smaller than the sum of its proper divisors (56069358).

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

55000146 is a wasteful number, since it uses less digits than its factorization.

55000146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89105.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55000146 is about 7416.2083304071. The cubic root of 55000146 is about 380.2955825795.

Subtracting 55000146 from its reverse (64100055), we obtain a palindrome (9099909).

The spelling of 55000146 in words is "fifty-five million, one hundred forty-six", and thus it is an aban number.