51472747 has 4 divisors (see below), whose sum is σ = 51524280. Its totient is φ = 51421216.

The previous prime is 51472739. The next prime is 51472769. The reversal of 51472747 is 74727415.

51472747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51472747 - 2³ = 51472739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51472727) 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 3 ways as a sum of consecutive naturals, for example, 24238 + ... + 26275.

It is an arithmetic number, because the mean of its divisors is an integer number (12881070).

Almost surely, 2^51472747 is an apocalyptic number.

51472747 is a deficient number, since it is larger than the sum of its proper divisors (51533).

51472747 is a wasteful number, since it uses less digits than its factorization.

51472747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51532.

The product of its digits is 54880, while the sum is 37.

The square root of 51472747 is about 7174.4509894486. The cubic root of 51472747 is about 371.9853035972.

The spelling of 51472747 in words is "fifty-one million, four hundred seventy-two thousand, seven hundred forty-seven".