55383888 has 80 divisors (see below), whose sum is σ = 164560896. Its totient is φ = 15722880.

The previous prime is 55383883. The next prime is 55383893. The reversal of 55383888 is 88838355.

It is an interprime number because it is at equal distance from previous prime (55383883) and next prime (55383893).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55383883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63745 + ... + 64607.

Almost surely, 2^55383888 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 55383888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82280448).

55383888 is an abundant number, since it is smaller than the sum of its proper divisors (109177008).

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

55383888 is a wasteful number, since it uses less digits than its factorization.

55383888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1066 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 55383888 is about 7442.0352055066. The cubic root of 55383888 is about 381.1779880831.

The spelling of 55383888 in words is "fifty-five million, three hundred eighty-three thousand, eight hundred eighty-eight".