51879927 has 32 divisors (see below), whose sum is σ = 81492480. Its totient is φ = 29025920.

The previous prime is 51879917. The next prime is 51879941. The reversal of 51879927 is 72997815.

It is not a de Polignac number, because 51879927 - 2⁴ = 51879911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51879917) 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 31 ways as a sum of consecutive naturals, for example, 20833 + ... + 23189.

It is an arithmetic number, because the mean of its divisors is an integer number (2546640).

Almost surely, 2^51879927 is an apocalyptic number.

51879927 is a deficient number, since it is larger than the sum of its proper divisors (29612553).

51879927 is a wasteful number, since it uses less digits than its factorization.

51879927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423.

The product of its digits is 317520, while the sum is 48.

The square root of 51879927 is about 7202.7721746561. The cubic root of 51879927 is about 372.9636033650.

It can be divided in two parts, 51 and 879927, that added together give a palindrome (879978).

The spelling of 51879927 in words is "fifty-one million, eight hundred seventy-nine thousand, nine hundred twenty-seven".