51966132 has 12 divisors (see below), whose sum is σ = 121254336. Its totient is φ = 17322040.

The previous prime is 51966119. The next prime is 51966143. The reversal of 51966132 is 23166915.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 51966093 and 51966102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165244 + ... + 2165267.

It is an arithmetic number, because the mean of its divisors is an integer number (10104528).

Almost surely, 2^51966132 is an apocalyptic number.

It is an amenable number.

51966132 is an abundant number, since it is smaller than the sum of its proper divisors (69288204).

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

51966132 is a wasteful number, since it uses less digits than its factorization.

51966132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330518 (or 4330516 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 51966132 is about 7208.7538451524. The cubic root of 51966132 is about 373.1700643084.

The spelling of 51966132 in words is "fifty-one million, nine hundred sixty-six thousand, one hundred thirty-two".