55101384 has 160 divisors (see below), whose sum is σ = 172381440. Its totient is φ = 16329600.

The previous prime is 55101383. The next prime is 55101401. The reversal of 55101384 is 48310155.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55101383) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 261039 + ... + 261249.

It is an arithmetic number, because the mean of its divisors is an integer number (1077384).

Almost surely, 2^55101384 is an apocalyptic number.

55101384 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55101384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86190720).

55101384 is an abundant number, since it is smaller than the sum of its proper divisors (117280056).

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

55101384 is a wasteful number, since it uses less digits than its factorization.

55101384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 55101384 is about 7423.0306479227. The cubic root of 55101384 is about 380.5287744814.

The spelling of 55101384 in words is "fifty-five million, one hundred one thousand, three hundred eighty-four".