55484250 has 64 divisors (see below), whose sum is σ = 143320320. Its totient is φ = 14280000.

The previous prime is 55484239. The next prime is 55484263. The reversal of 55484250 is 5248455.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20475 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (2239380).

Almost surely, 2^55484250 is an apocalyptic number.

55484250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55484250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71660160).

55484250 is an abundant number, since it is smaller than the sum of its proper divisors (87836070).

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

55484250 is a wasteful number, since it uses less digits than its factorization.

55484250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600 (or 2590 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 55484250 is about 7448.7750670832. The cubic root of 55484250 is about 381.4080953212.

The spelling of 55484250 in words is "fifty-five million, four hundred eighty-four thousand, two hundred fifty".