555486984 has 320 divisors, whose sum is σ = 1814883840. Its totient is φ = 157386240.

The previous prime is 555486977. The next prime is 555486991. The reversal of 555486984 is 489684555.

555486984 is a `hidden beast` number, since 5 + 5 + 548 + 6 + 98 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (555486977) and next prime (555486991).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 555486984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9106314 + ... + 9106374.

It is an arithmetic number, because the mean of its divisors is an integer number (5671512).

Almost surely, 2^555486984 is an apocalyptic number.

555486984 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555486984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907441920).

555486984 is an abundant number, since it is smaller than the sum of its proper divisors (1259396856).

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

555486984 is a wasteful number, since it uses less digits than its factorization.

555486984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 149 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 54.

The square root of 555486984 is about 23568.7713723053. The cubic root of 555486984 is about 822.0368676522.

The spelling of 555486984 in words is "five hundred fifty-five million, four hundred eighty-six thousand, nine hundred eighty-four".