99886550 has 12 divisors (see below), whose sum is σ = 185789076. Its totient is φ = 39954600.

The previous prime is 99886531. The next prime is 99886559. The reversal of 99886550 is 5568899.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 1997731 = 99886550 / (9 + 9 + 8 + 8 + 6 + 5 + 5 + 0).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99886559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 998816 + ... + 998915.

It is an arithmetic number, because the mean of its divisors is an integer number (15482423).

Almost surely, 2^99886550 is an apocalyptic number.

99886550 is a deficient number, since it is larger than the sum of its proper divisors (85902526).

99886550 is a wasteful number, since it uses less digits than its factorization.

99886550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997743 (or 1997738 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 50.

The square root of 99886550 is about 9994.3258902239. The cubic root of 99886550 is about 463.9832875223.

The spelling of 99886550 in words is "ninety-nine million, eight hundred eighty-six thousand, five hundred fifty".