51826238 has 4 divisors (see below), whose sum is σ = 77739360. Its totient is φ = 25913118.

The previous prime is 51826211. The next prime is 51826241. The reversal of 51826238 is 83262815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83262815 = 5 ⋅16652563.

It is a junction number, because it is equal to n+sod(n) for n = 51826198 and 51826207.

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, 12956558 + ... + 12956561.

It is an arithmetic number, because the mean of its divisors is an integer number (19434840).

Almost surely, 2^51826238 is an apocalyptic number.

51826238 is a deficient number, since it is larger than the sum of its proper divisors (25913122).

51826238 is a wasteful number, since it uses less digits than its factorization.

51826238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25913121.

The product of its digits is 23040, while the sum is 35.

The square root of 51826238 is about 7199.0442421199. The cubic root of 51826238 is about 372.8349026294.

The spelling of 51826238 in words is "fifty-one million, eight hundred twenty-six thousand, two hundred thirty-eight".