550541503998 has 16 divisors (see below), whose sum is σ = 1223425564560. Its totient is φ = 183513834648.

The previous prime is 550541503973. The next prime is 550541503999. The reversal of 550541503998 is 899305145055.

550541503998 is a `hidden beast` number, since 5 + 5 + 0 + 5 + 41 + 503 + 9 + 98 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 10195213037 = 550541503998 / (5 + 5 + 0 + 5 + 4 + 1 + 5 + 0 + 3 + 9 + 9 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550541503999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5097606465 + ... + 5097606572.

It is an arithmetic number, because the mean of its divisors is an integer number (76464097785).

Almost surely, 2^550541503998 is an apocalyptic number.

550541503998 is an abundant number, since it is smaller than the sum of its proper divisors (672884060562).

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

550541503998 is a wasteful number, since it uses less digits than its factorization.

550541503998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10195213048 (or 10195213042 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 54.

The spelling of 550541503998 in words is "five hundred fifty billion, five hundred forty-one million, five hundred three thousand, nine hundred ninety-eight".