51748426 has 4 divisors (see below), whose sum is σ = 77622642. Its totient is φ = 25874212.

The previous prime is 51748423. The next prime is 51748439. The reversal of 51748426 is 62484715.

51748426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 34234201 + 17514225 = 5851^2 + 4185^2 .

It is not an unprimeable number, because it can be changed into a prime (51748423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12937105 + ... + 12937108.

Almost surely, 2^51748426 is an apocalyptic number.

51748426 is a deficient number, since it is larger than the sum of its proper divisors (25874216).

51748426 is a wasteful number, since it uses less digits than its factorization.

51748426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25874215.

The product of its digits is 53760, while the sum is 37.

The square root of 51748426 is about 7193.6378835746. The cubic root of 51748426 is about 372.6482175206.

The spelling of 51748426 in words is "fifty-one million, seven hundred forty-eight thousand, four hundred twenty-six".