55255146 has 8 divisors (see below), whose sum is σ = 110510304. Its totient is φ = 18418380.

The previous prime is 55255133. The next prime is 55255157. The reversal of 55255146 is 64155255.

It is a sphenic number, since it is the product of 3 distinct primes.

55255146 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4604590 + ... + 4604601.

It is an arithmetic number, because the mean of its divisors is an integer number (13813788).

Almost surely, 2^55255146 is an apocalyptic number.

55255146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55255146 is a wasteful number, since it uses less digits than its factorization.

55255146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9209196.

The product of its digits is 30000, while the sum is 33.

The square root of 55255146 is about 7433.3805230191. The cubic root of 55255146 is about 380.8824045840.

The spelling of 55255146 in words is "fifty-five million, two hundred fifty-five thousand, one hundred forty-six".