51722326 has 4 divisors (see below), whose sum is σ = 77583492. Its totient is φ = 25861162.

The previous prime is 51722323. The next prime is 51722357. The reversal of 51722326 is 62322715.

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

It is a junction number, because it is equal to n+sod(n) for n = 51722294 and 51722303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51722323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12930580 + ... + 12930583.

It is an arithmetic number, because the mean of its divisors is an integer number (19395873).

Almost surely, 2^51722326 is an apocalyptic number.

51722326 is a deficient number, since it is larger than the sum of its proper divisors (25861166).

51722326 is a wasteful number, since it uses less digits than its factorization.

51722326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25861165.

The product of its digits is 5040, while the sum is 28.

The square root of 51722326 is about 7191.8235517843. The cubic root of 51722326 is about 372.5855569732.

The spelling of 51722326 in words is "fifty-one million, seven hundred twenty-two thousand, three hundred twenty-six".