51819272 has 8 divisors (see below), whose sum is σ = 97161150. Its totient is φ = 25909632.

The previous prime is 51819241. The next prime is 51819283. The reversal of 51819272 is 27291815.

It can be written as a sum of positive squares in only one way, i.e., 42172036 + 9647236 = 6494^2 + 3106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3238697 + ... + 3238712.

Almost surely, 2^51819272 is an apocalyptic number.

It is an amenable number.

51819272 is a deficient number, since it is larger than the sum of its proper divisors (45341878).

51819272 is a wasteful number, since it uses less digits than its factorization.

51819272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6477415 (or 6477411 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 51819272 is about 7198.5604116379. The cubic root of 51819272 is about 372.8181975497.

The spelling of 51819272 in words is "fifty-one million, eight hundred nineteen thousand, two hundred seventy-two".