55480824 has 192 divisors, whose sum is σ = 183306240. Its totient is φ = 14826240.

The previous prime is 55480823. The next prime is 55480829. The reversal of 55480824 is 42808455.

55480824 is a `hidden beast` number, since 554 + 80 + 8 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55480823) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 828039 + ... + 828105.

It is an arithmetic number, because the mean of its divisors is an integer number (954720).

Almost surely, 2^55480824 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 55480824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91653120).

55480824 is an abundant number, since it is smaller than the sum of its proper divisors (127825416).

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

55480824 is a wasteful number, since it uses less digits than its factorization.

55480824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 55480824 is about 7448.5450928352. The cubic root of 55480824 is about 381.4002448590.

The spelling of 55480824 in words is "fifty-five million, four hundred eighty thousand, eight hundred twenty-four".