51166332 has 72 divisors (see below), whose sum is σ = 148549856. Its totient is φ = 14546304.

The previous prime is 51166303. The next prime is 51166333. The reversal of 51166332 is 23366115.

It is a junction number, because it is equal to n+sod(n) for n = 51166296 and 51166305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51166333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69438 + ... + 70170.

Almost surely, 2^51166332 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 51166332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74274928).

51166332 is an abundant number, since it is smaller than the sum of its proper divisors (97383524).

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

51166332 is a wasteful number, since it uses less digits than its factorization.

51166332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1022 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 51166332 is about 7153.0645180929. The cubic root of 51166332 is about 371.2456966477.

The spelling of 51166332 in words is "fifty-one million, one hundred sixty-six thousand, three hundred thirty-two".