51394234 has 4 divisors (see below), whose sum is σ = 77091354. Its totient is φ = 25697116.

The previous prime is 51394201. The next prime is 51394243. The reversal of 51394234 is 43249315.

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

It can be written as a sum of positive squares in only one way, i.e., 27531009 + 23863225 = 5247^2 + 4885^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51394196 and 51394205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12848557 + ... + 12848560.

Almost surely, 2^51394234 is an apocalyptic number.

51394234 is a deficient number, since it is larger than the sum of its proper divisors (25697120).

51394234 is a wasteful number, since it uses less digits than its factorization.

51394234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25697119.

The product of its digits is 12960, while the sum is 31.

The square root of 51394234 is about 7168.9771934356. The cubic root of 51394234 is about 371.7960737238.

The spelling of 51394234 in words is "fifty-one million, three hundred ninety-four thousand, two hundred thirty-four".