51379471 has 8 divisors (see below), whose sum is σ = 60362064. Its totient is φ = 43115520.

The previous prime is 51379469. The next prime is 51379481. The reversal of 51379471 is 17497315.

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 51379471 - 2¹ = 51379469 is a prime.

It is a super-3 number, since 3×51379471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51379471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51379451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179506 + ... + 179791.

It is an arithmetic number, because the mean of its divisors is an integer number (7545258).

Almost surely, 2^51379471 is an apocalyptic number.

51379471 is a deficient number, since it is larger than the sum of its proper divisors (8982593).

51379471 is a wasteful number, since it uses less digits than its factorization.

51379471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359321.

The product of its digits is 26460, while the sum is 37.

The square root of 51379471 is about 7167.9474746959. The cubic root of 51379471 is about 371.7604708254.

The spelling of 51379471 in words is "fifty-one million, three hundred seventy-nine thousand, four hundred seventy-one".