51875638 has 8 divisors (see below), whose sum is σ = 77954832. Its totient is φ = 25890696.

The previous prime is 51875627. The next prime is 51875647. The reversal of 51875638 is 83657815.

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

It is a junction number, because it is equal to n+sod(n) for n = 51875594 and 51875603.

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, 22170 + ... + 24397.

It is an arithmetic number, because the mean of its divisors is an integer number (9744354).

Almost surely, 2^51875638 is an apocalyptic number.

51875638 is a deficient number, since it is larger than the sum of its proper divisors (26079194).

51875638 is a wasteful number, since it uses less digits than its factorization.

51875638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47126.

The product of its digits is 201600, while the sum is 43.

The square root of 51875638 is about 7202.4744359144. The cubic root of 51875638 is about 372.9533252409.

The spelling of 51875638 in words is "fifty-one million, eight hundred seventy-five thousand, six hundred thirty-eight".