55287360 has 224 divisors, whose sum is σ = 199948800. Its totient is φ = 14556672.

The previous prime is 55287343. The next prime is 55287367. The reversal of 55287360 is 6378255.

55287360 is a `hidden beast` number, since 5 + 528 + 73 + 60 = 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 (55287367) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699801 + ... + 699879.

Almost surely, 2^55287360 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 55287360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99974400).

55287360 is an abundant number, since it is smaller than the sum of its proper divisors (144661440).

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

55287360 is an frugal number, since it uses more digits than its factorization.

55287360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55287360 is about 7435.5470545213. The cubic root of 55287360 is about 380.9564089257.

The spelling of 55287360 in words is "fifty-five million, two hundred eighty-seven thousand, three hundred sixty".