55148886 has 24 divisors (see below), whose sum is σ = 128681280. Its totient is φ = 16968816.

The previous prime is 55148879. The next prime is 55148921. The reversal of 55148886 is 68884155.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 117606 + ... + 118073.

It is an arithmetic number, because the mean of its divisors is an integer number (5361720).

Almost surely, 2^55148886 is an apocalyptic number.

55148886 is an abundant number, since it is smaller than the sum of its proper divisors (73532394).

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

55148886 is a wasteful number, since it uses less digits than its factorization.

55148886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235700 (or 235697 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 55148886 is about 7426.2295951580. The cubic root of 55148886 is about 380.6380922802.

It can be divided in two parts, 5514 and 8886, that added together give a square (14400 = 120²).

The spelling of 55148886 in words is "fifty-five million, one hundred forty-eight thousand, eight hundred eighty-six".