51906858 has 8 divisors (see below), whose sum is σ = 103813728. Its totient is φ = 17302284.

The previous prime is 51906857. The next prime is 51906863. The reversal of 51906858 is 85860915.

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

51906858 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51906851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4325566 + ... + 4325577.

It is an arithmetic number, because the mean of its divisors is an integer number (12976716).

Almost surely, 2^51906858 is an apocalyptic number.

51906858 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.

51906858 is a wasteful number, since it uses less digits than its factorization.

51906858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651148.

The product of its (nonzero) digits is 86400, while the sum is 42.

The square root of 51906858 is about 7204.6414206399. The cubic root of 51906858 is about 373.0281276481.

The spelling of 51906858 in words is "fifty-one million, nine hundred six thousand, eight hundred fifty-eight".