51879829 has 8 divisors (see below), whose sum is σ = 52964120. Its totient is φ = 50803200.

The previous prime is 51879781. The next prime is 51879847. The reversal of 51879829 is 92897815.

It can be written as a sum of positive squares in 4 ways, for example, as 11025 + 51868804 = 105^2 + 7202^2 .

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 51879829 - 2¹⁹ = 51355541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51879889) 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, 12937 + ... + 16465.

It is an arithmetic number, because the mean of its divisors is an integer number (6620515).

Almost surely, 2^51879829 is an apocalyptic number.

It is an amenable number.

51879829 is a deficient number, since it is larger than the sum of its proper divisors (1084291).

51879829 is a wasteful number, since it uses less digits than its factorization.

51879829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its digits is 362880, while the sum is 49.

The square root of 51879829 is about 7202.7653717166. The cubic root of 51879829 is about 372.9633685249.

The spelling of 51879829 in words is "fifty-one million, eight hundred seventy-nine thousand, eight hundred twenty-nine".