55573248 has 54 divisors (see below), whose sum is σ = 148457764. Its totient is φ = 18455552.

The previous prime is 55573247. The next prime is 55573253. The reversal of 55573248 is 84237555.

It is not an unprimeable number, because it can be changed into a prime (55573241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206458 + ... + 206726.

Almost surely, 2^55573248 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 55573248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74228882).

55573248 is an abundant number, since it is smaller than the sum of its proper divisors (92884516).

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

55573248 is an frugal number, since it uses more digits than its factorization.

55573248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 274 counting only the distinct ones).

The product of its digits is 168000, while the sum is 39.

The square root of 55573248 is about 7454.7466757764. The cubic root of 55573248 is about 381.6119154716.

The spelling of 55573248 in words is "fifty-five million, five hundred seventy-three thousand, two hundred forty-eight".