51879423 has 4 divisors (see below), whose sum is σ = 69172568. Its totient is φ = 34586280.

The previous prime is 51879419. The next prime is 51879433. The reversal of 51879423 is 32497815.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 51879423 - 2² = 51879419 is a prime.

It is a super-3 number, since 3×51879423³ (a number of 24 digits) contains 333 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 (51879403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8646568 + ... + 8646573.

It is an arithmetic number, because the mean of its divisors is an integer number (17293142).

Almost surely, 2^51879423 is an apocalyptic number.

51879423 is a deficient number, since it is larger than the sum of its proper divisors (17293145).

51879423 is a wasteful number, since it uses less digits than its factorization.

51879423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17293144.

The product of its digits is 60480, while the sum is 39.

The square root of 51879423 is about 7202.7371880418. The cubic root of 51879423 is about 372.9623956129.

The spelling of 51879423 in words is "fifty-one million, eight hundred seventy-nine thousand, four hundred twenty-three".