51608038 has 4 divisors (see below), whose sum is σ = 77412060. Its totient is φ = 25804018.

The previous prime is 51608017. The next prime is 51608057. The reversal of 51608038 is 83080615.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12902008 + ... + 12902011.

It is an arithmetic number, because the mean of its divisors is an integer number (19353015).

Almost surely, 2^51608038 is an apocalyptic number.

51608038 is a deficient number, since it is larger than the sum of its proper divisors (25804022).

51608038 is a wasteful number, since it uses less digits than its factorization.

51608038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25804021.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 51608038 is about 7183.8734677053. The cubic root of 51608038 is about 372.3109272743.

The spelling of 51608038 in words is "fifty-one million, six hundred eight thousand, thirty-eight".