51366632 has 16 divisors (see below), whose sum is σ = 96928260. Its totient is φ = 25519104.

The previous prime is 51366611. The next prime is 51366647. The reversal of 51366632 is 23666315.

It can be written as a sum of positive squares in 2 ways, for example, as 50779876 + 586756 = 7126^2 + 766^2 .

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, 19193 + ... + 21704.

Almost surely, 2^51366632 is an apocalyptic number.

It is an amenable number.

51366632 is a deficient number, since it is larger than the sum of its proper divisors (45561628).

51366632 is a wasteful number, since it uses less digits than its factorization.

51366632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41060 (or 41056 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 51366632 is about 7167.0518346109. The cubic root of 51366632 is about 371.7295023587.

The spelling of 51366632 in words is "fifty-one million, three hundred sixty-six thousand, six hundred thirty-two".