32551116 has 96 divisors (see below), whose sum is σ = 86704128. Its totient is φ = 9434880.

The previous prime is 32551111. The next prime is 32551121. The reversal of 32551116 is 61115523.

It is an interprime number because it is at equal distance from previous prime (32551111) and next prime (32551121).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (32551111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256245 + ... + 256371.

It is an arithmetic number, because the mean of its divisors is an integer number (903168).

Almost surely, 2^32551116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32551116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43352064).

32551116 is an abundant number, since it is smaller than the sum of its proper divisors (54153012).

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

32551116 is a wasteful number, since it uses less digits than its factorization.

32551116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 229 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 32551116 is about 5705.3585338697. The cubic root of 32551116 is about 319.2924340189.

Adding to 32551116 its reverse (61115523), we get a palindrome (93666639).

It can be divided in two parts, 3255 and 1116, that added together give a triangular number (4371 = T₉₃).

The spelling of 32551116 in words is "thirty-two million, five hundred fifty-one thousand, one hundred sixteen".