51878206 has 8 divisors (see below), whose sum is σ = 77930424. Its totient is φ = 25901400.

The previous prime is 51878171. The next prime is 51878231. The reversal of 51878206 is 60287815.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17100 + ... + 19903.

It is an arithmetic number, because the mean of its divisors is an integer number (9741303).

Almost surely, 2^51878206 is an apocalyptic number.

51878206 is a deficient number, since it is larger than the sum of its proper divisors (26052218).

51878206 is a wasteful number, since it uses less digits than its factorization.

51878206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37706.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 51878206 is about 7202.6527057744. The cubic root of 51878206 is about 372.9594792429.

The spelling of 51878206 in words is "fifty-one million, eight hundred seventy-eight thousand, two hundred six".