9950551 has 12 divisors (see below), whose sum is σ = 10903872. Its totient is φ = 9075456.

The previous prime is 9950539. The next prime is 9950569. The reversal of 9950551 is 1550599.

It is not a de Polignac number, because 9950551 - 2¹¹ = 9948503 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9950531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16090 + ... + 16696.

It is an arithmetic number, because the mean of its divisors is an integer number (908656).

Almost surely, 2^9950551 is an apocalyptic number.

9950551 is a deficient number, since it is larger than the sum of its proper divisors (953321).

9950551 is a wasteful number, since it uses less digits than its factorization.

9950551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 10125, while the sum is 34.

The square root of 9950551 is about 3154.4493972800. The cubic root of 9950551 is about 215.0877665831.

It can be divided in two parts, 9950 and 551, that added together give a palindrome (10501).

The spelling of 9950551 in words is "nine million, nine hundred fifty thousand, five hundred fifty-one".