55078912 has 104 divisors (see below), whose sum is σ = 134463456. Its totient is φ = 22020096.

The previous prime is 55078901. The next prime is 55078921. The reversal of 55078912 is 21987055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487368 + ... + 487480.

Almost surely, 2^55078912 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 55078912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67231728).

55078912 is an abundant number, since it is smaller than the sum of its proper divisors (79384544).

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

55078912 is a wasteful number, since it uses less digits than its factorization.

55078912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 55078912 is about 7421.5168260942. The cubic root of 55078912 is about 380.4770370915.

The spelling of 55078912 in words is "fifty-five million, seventy-eight thousand, nine hundred twelve".