51871458 has 8 divisors (see below), whose sum is σ = 103742928. Its totient is φ = 17290484.

The previous prime is 51871451. The next prime is 51871483. The reversal of 51871458 is 85417815.

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

51871458 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51871451) 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, 4322616 + ... + 4322627.

It is an arithmetic number, because the mean of its divisors is an integer number (12967866).

Almost surely, 2^51871458 is an apocalyptic number.

51871458 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.

51871458 is a wasteful number, since it uses less digits than its factorization.

51871458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645248.

The product of its digits is 44800, while the sum is 39.

The square root of 51871458 is about 7202.1842520169. The cubic root of 51871458 is about 372.9433077784.

The spelling of 51871458 in words is "fifty-one million, eight hundred seventy-one thousand, four hundred fifty-eight".