55093920 has 192 divisors, whose sum is σ = 209018880. Its totient is φ = 11916288.

The previous prime is 55093897. The next prime is 55093921. The reversal of 55093920 is 2939055.

It is not an unprimeable number, because it can be changed into a prime (55093921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63409 + ... + 64271.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^55093920 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 55093920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104509440).

55093920 is an abundant number, since it is smaller than the sum of its proper divisors (153924960).

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

55093920 is a wasteful number, since it uses less digits than its factorization.

55093920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 55093920 is about 7422.5278712848. The cubic root of 55093920 is about 380.5115916400.

The spelling of 55093920 in words is "fifty-five million, ninety-three thousand, nine hundred twenty".