51577732 has 6 divisors (see below), whose sum is σ = 90261038. Its totient is φ = 25788864.

The previous prime is 51577727. The next prime is 51577751. The reversal of 51577732 is 23777515.

It can be written as a sum of positive squares in only one way, i.e., 50466816 + 1110916 = 7104^2 + 1054^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51577691 and 51577700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6447213 + ... + 6447220.

Almost surely, 2^51577732 is an apocalyptic number.

It is an amenable number.

51577732 is a deficient number, since it is larger than the sum of its proper divisors (38683306).

51577732 is a wasteful number, since it uses less digits than its factorization.

51577732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12894437 (or 12894435 counting only the distinct ones).

The product of its digits is 51450, while the sum is 37.

The square root of 51577732 is about 7181.7638501972. The cubic root of 51577732 is about 372.2380351128.

The spelling of 51577732 in words is "fifty-one million, five hundred seventy-seven thousand, seven hundred thirty-two".