51147633 has 8 divisors (see below), whose sum is σ = 68413248. Its totient is φ = 33990224.

The previous prime is 51147589. The next prime is 51147659. The reversal of 51147633 is 33674115.

51147633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51147633 - 2¹⁸ = 50885489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51147633.

It is not an unprimeable number, because it can be changed into a prime (51147133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25941 + ... + 27842.

It is an arithmetic number, because the mean of its divisors is an integer number (8551656).

Almost surely, 2^51147633 is an apocalyptic number.

It is an amenable number.

51147633 is a deficient number, since it is larger than the sum of its proper divisors (17265615).

51147633 is a wasteful number, since it uses less digits than its factorization.

51147633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54103.

The product of its digits is 7560, while the sum is 30.

The square root of 51147633 is about 7151.7573364873. The cubic root of 51147633 is about 371.2004665857.

The spelling of 51147633 in words is "fifty-one million, one hundred forty-seven thousand, six hundred thirty-three".