51660932 has 12 divisors (see below), whose sum is σ = 91645596. Its totient is φ = 25476480.

The previous prime is 51660923. The next prime is 51660937. The reversal of 51660932 is 23906615.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27709696 + 23951236 = 5264^2 + 4894^2 .

It is not an unprimeable number, because it can be changed into a prime (51660937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88169 + ... + 88752.

It is an arithmetic number, because the mean of its divisors is an integer number (7637133).

Almost surely, 2^51660932 is an apocalyptic number.

It is an amenable number.

51660932 is a deficient number, since it is larger than the sum of its proper divisors (39984664).

51660932 is a wasteful number, since it uses less digits than its factorization.

51660932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176998 (or 176996 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 51660932 is about 7187.5539650148. The cubic root of 51660932 is about 372.4380798838.

The spelling of 51660932 in words is "fifty-one million, six hundred sixty thousand, nine hundred thirty-two".