51329271 has 8 divisors (see below), whose sum is σ = 78216064. Its totient is φ = 29331000.

The previous prime is 51329263. The next prime is 51329309. The reversal of 51329271 is 17292315.

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

It is not a de Polignac number, because 51329271 - 2³ = 51329263 is a prime.

It is a super-2 number, since 2×51329271² = 5269388122782882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51329251) 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, 1222105 + ... + 1222146.

It is an arithmetic number, because the mean of its divisors is an integer number (9777008).

Almost surely, 2^51329271 is an apocalyptic number.

51329271 is a deficient number, since it is larger than the sum of its proper divisors (26886793).

51329271 is a wasteful number, since it uses less digits than its factorization.

51329271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444261.

The product of its digits is 3780, while the sum is 30.

The square root of 51329271 is about 7164.4449191825. Note that the first 3 decimals coincide. The cubic root of 51329271 is about 371.6393559355.

The spelling of 51329271 in words is "fifty-one million, three hundred twenty-nine thousand, two hundred seventy-one".