55142048 has 96 divisors (see below), whose sum is σ = 124023312. Its totient is φ = 23961600.

The previous prime is 55142023. The next prime is 55142051. The reversal of 55142048 is 84024155.

It can be written as a sum of positive squares in 8 ways, for example, as 795664 + 54346384 = 892^2 + 7372^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55142048.

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 15 ways as a sum of consecutive naturals, for example, 903938 + ... + 903998.

Almost surely, 2^55142048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55142048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62011656).

55142048 is an abundant number, since it is smaller than the sum of its proper divisors (68881264).

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

55142048 is a wasteful number, since it uses less digits than its factorization.

55142048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 55142048 is about 7425.7691857477. The cubic root of 55142048 is about 380.6223596514.

The spelling of 55142048 in words is "fifty-five million, one hundred forty-two thousand, forty-eight".