51879366 has 80 divisors (see below), whose sum is σ = 144967680. Its totient is φ = 13471920.

The previous prime is 51879361. The next prime is 51879403. The reversal of 51879366 is 66397815.

It is a happy number.

51879366 is a `hidden beast` number, since 518 + 79 + 3 + 66 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51879361) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10395 + ... + 14553.

It is an arithmetic number, because the mean of its divisors is an integer number (1812096).

Almost surely, 2^51879366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51879366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72483840).

51879366 is an abundant number, since it is smaller than the sum of its proper divisors (93088314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51879366 is a wasteful number, since it uses less digits than its factorization.

51879366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191 (or 4182 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 51879366 is about 7202.7332312116. The cubic root of 51879366 is about 372.9622590214.

The spelling of 51879366 in words is "fifty-one million, eight hundred seventy-nine thousand, three hundred sixty-six".