55298315520 has 288 divisors, whose sum is σ = 224266371840. Its totient is φ = 12639559680.

The previous prime is 55298315453. The next prime is 55298315549. The reversal of 55298315520 is 2551389255.

It is a happy number.

55298315520 is a `hidden beast` number, since 5 + 5 + 2 + 98 + 3 + 1 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127630 + ... + 356210.

It is an arithmetic number, because the mean of its divisors is an integer number (778702680).

Almost surely, 2^55298315520 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 55298315520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112133185920).

55298315520 is an abundant number, since it is smaller than the sum of its proper divisors (168968056320).

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

55298315520 is a wasteful number, since it uses less digits than its factorization.

55298315520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228618 (or 228598 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The spelling of 55298315520 in words is "fifty-five billion, two hundred ninety-eight million, three hundred fifteen thousand, five hundred twenty".