55245888 has 70 divisors (see below), whose sum is σ = 163781486. Its totient is φ = 18413568.

The previous prime is 55245877. The next prime is 55245893. The reversal of 55245888 is 88854255.

It can be written as a sum of positive squares in only one way, i.e., 34012224 + 21233664 = 5832^2 + 4608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 145 + ... + 10512.

Almost surely, 2^55245888 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 55245888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81890743).

55245888 is an abundant number, since it is smaller than the sum of its proper divisors (108535598).

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

55245888 is a wasteful number, since it uses less digits than its factorization.

55245888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681 (or 10662 counting only the distinct ones).

The product of its digits is 512000, while the sum is 45.

The square root of 55245888 is about 7432.7577654596. The cubic root of 55245888 is about 380.8611311128.

The spelling of 55245888 in words is "fifty-five million, two hundred forty-five thousand, eight hundred eighty-eight".