9551880 has 144 divisors (see below), whose sum is σ = 33829380. Its totient is φ = 2336256.

The previous prime is 9551879. The next prime is 9551887. The reversal of 9551880 is 881559.

It can be written as a sum of positive squares in 6 ways, for example, as 443556 + 9108324 = 666^2 + 3018^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9551887) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 60762 + ... + 60918.

Almost surely, 2^9551880 is an apocalyptic number.

9551880 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9551880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16914690).

9551880 is an abundant number, since it is smaller than the sum of its proper divisors (24277500).

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

9551880 is a wasteful number, since it uses less digits than its factorization.

9551880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 9551880 is about 3090.6115899608. The cubic root of 9551880 is about 212.1760137855.

The spelling of 9551880 in words is "nine million, five hundred fifty-one thousand, eight hundred eighty".