51375858 has 8 divisors (see below), whose sum is σ = 102751728. Its totient is φ = 17125284.

The previous prime is 51375851. The next prime is 51375913. The reversal of 51375858 is 85857315.

It is a happy number.

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

51375858 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51375851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4281316 + ... + 4281327.

It is an arithmetic number, because the mean of its divisors is an integer number (12843966).

Almost surely, 2^51375858 is an apocalyptic number.

51375858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51375858 is a wasteful number, since it uses less digits than its factorization.

51375858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8562648.

The product of its digits is 168000, while the sum is 42.

The square root of 51375858 is about 7167.6954455390. The cubic root of 51375858 is about 371.7517565663.

The spelling of 51375858 in words is "fifty-one million, three hundred seventy-five thousand, eight hundred fifty-eight".