51352747 has 4 divisors (see below), whose sum is σ = 51369120. Its totient is φ = 51336376.

The previous prime is 51352711. The next prime is 51352751. The reversal of 51352747 is 74725315.

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 51352747 - 2¹¹ = 51350699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51352757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843 + ... + 10300.

It is an arithmetic number, because the mean of its divisors is an integer number (12842280).

Almost surely, 2^51352747 is an apocalyptic number.

51352747 is a deficient number, since it is larger than the sum of its proper divisors (16373).

51352747 is a wasteful number, since it uses less digits than its factorization.

51352747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16372.

The product of its digits is 29400, while the sum is 34.

The square root of 51352747 is about 7166.0831002717. The cubic root of 51352747 is about 371.6960050663.

The spelling of 51352747 in words is "fifty-one million, three hundred fifty-two thousand, seven hundred forty-seven".