51297047 has 8 divisors (see below), whose sum is σ = 51925536. Its totient is φ = 50672512.

The previous prime is 51297023. The next prime is 51297089. The reversal of 51297047 is 74079215.

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 51297047 - 2⁶ = 51296983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51296998 and 51297016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51297097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31118 + ... + 32724.

It is an arithmetic number, because the mean of its divisors is an integer number (6490692).

Almost surely, 2^51297047 is an apocalyptic number.

51297047 is a deficient number, since it is larger than the sum of its proper divisors (628489).

51297047 is a wasteful number, since it uses less digits than its factorization.

51297047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 51297047 is about 7162.1956828894. The cubic root of 51297047 is about 371.5615691722.

The spelling of 51297047 in words is "fifty-one million, two hundred ninety-seven thousand, forty-seven".