51045238 has 8 divisors (see below), whose sum is σ = 77428440. Its totient is φ = 25235760.

The previous prime is 51045209. The next prime is 51045301. The reversal of 51045238 is 83254015.

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

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, 143208 + ... + 143563.

It is an arithmetic number, because the mean of its divisors is an integer number (9678555).

Almost surely, 2^51045238 is an apocalyptic number.

51045238 is a deficient number, since it is larger than the sum of its proper divisors (26383202).

51045238 is a wasteful number, since it uses less digits than its factorization.

51045238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286862.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 51045238 is about 7144.5950200134. The cubic root of 51045238 is about 370.9525928532.

The spelling of 51045238 in words is "fifty-one million, forty-five thousand, two hundred thirty-eight".