9988603250 has 32 divisors (see below), whose sum is σ = 19204052400. Its totient is φ = 3887452800.

The previous prime is 9988603201. The next prime is 9988603267. The reversal of 9988603250 is 523068899.

It is a Cunningham number, because it is equal to 99943²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 1237562041 + 8751041209 = 35179^2 + 93547^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530675 + ... + 549174.

Almost surely, 2^9988603250 is an apocalyptic number.

9988603250 is a deficient number, since it is larger than the sum of its proper divisors (9215449150).

9988603250 is a wasteful number, since it uses less digits than its factorization.

9988603250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079903 (or 1079893 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 9988603250 is about 99943.0000050029. Note that the first 5 decimals coincide. The cubic root of 9988603250 is about 2153.6159271267.

The spelling of 9988603250 in words is "nine billion, nine hundred eighty-eight million, six hundred three thousand, two hundred fifty".