51352147 has 12 divisors (see below), whose sum is σ = 65167416. Its totient is φ = 40014240.

The previous prime is 51352129. The next prime is 51352163. The reversal of 51352147 is 74125315.

It is a happy number.

51352147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-51352147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51362147) 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 11 ways as a sum of consecutive naturals, for example, 47098 + ... + 48175.

It is an arithmetic number, because the mean of its divisors is an integer number (5430618).

Almost surely, 2^51352147 is an apocalyptic number.

51352147 is a deficient number, since it is larger than the sum of its proper divisors (13815269).

51352147 is a wasteful number, since it uses less digits than its factorization.

51352147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95298 (or 95291 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 51352147 is about 7166.0412362754. The cubic root of 51352147 is about 371.6945574419.

The spelling of 51352147 in words is "fifty-one million, three hundred fifty-two thousand, one hundred forty-seven".