980585550 has 144 divisors (see below), whose sum is σ = 3072794400. Its totient is φ = 224098560.

The previous prime is 980585537. The next prime is 980585569. The reversal of 980585550 is 55585089.

980585550 is a `hidden beast` number, since 98 + 0 + 5 + 8 + 5 + 550 = 666.

980585550 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 980585496 and 980585505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 151174 + ... + 157526.

It is an arithmetic number, because the mean of its divisors is an integer number (21338850).

Almost surely, 2^980585550 is an apocalyptic number.

980585550 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 980585550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1536397200).

980585550 is an abundant number, since it is smaller than the sum of its proper divisors (2092208850).

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

980585550 is a wasteful number, since it uses less digits than its factorization.

980585550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392 (or 6370 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 45.

The square root of 980585550 is about 31314.3026427222. The cubic root of 980585550 is about 993.4861789286.

The spelling of 980585550 in words is "nine hundred eighty million, five hundred eighty-five thousand, five hundred fifty".