9995550 has 48 divisors (see below), whose sum is σ = 25473072. Its totient is φ = 2592000.

The previous prime is 9995549. The next prime is 9995563. The reversal of 9995550 is 555999.

It is a super-2 number, since 2×9995550² = 199822039605000, which contains 22 as substring.

It is an Ulam number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4650 + ... + 6450.

It is an arithmetic number, because the mean of its divisors is an integer number (530689).

Almost surely, 2^9995550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9995550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12736536).

9995550 is an abundant number, since it is smaller than the sum of its proper divisors (15477522).

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

9995550 is a wasteful number, since it uses less digits than its factorization.

9995550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 91125, while the sum is 42.

The square root of 9995550 is about 3161.5739750953. The cubic root of 9995550 is about 215.4115068138.

The spelling of 9995550 in words is "nine million, nine hundred ninety-five thousand, five hundred fifty".