55797248 has 80 divisors (see below), whose sum is σ = 122710896. Its totient is φ = 25190400.

The previous prime is 55797233. The next prime is 55797257. The reversal of 55797248 is 84279755.

It is a happy number.

It is a super-2 number, since 2×55797248² = 6226665768747008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552398 + ... + 552498.

Almost surely, 2^55797248 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 55797248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61355448).

55797248 is an abundant number, since it is smaller than the sum of its proper divisors (66913648).

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

55797248 is a wasteful number, since it uses less digits than its factorization.

55797248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 199 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The square root of 55797248 is about 7469.7555515559. The cubic root of 55797248 is about 382.1239512601.

The spelling of 55797248 in words is "fifty-five million, seven hundred ninety-seven thousand, two hundred forty-eight".