51740538 has 8 divisors (see below), whose sum is σ = 103481088. Its totient is φ = 17246844.

The previous prime is 51740527. The next prime is 51740539. The reversal of 51740538 is 83504715.

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

51740538 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 51740499 and 51740508.

It is not an unprimeable number, because it can be changed into a prime (51740539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4311706 + ... + 4311717.

It is an arithmetic number, because the mean of its divisors is an integer number (12935136).

Almost surely, 2^51740538 is an apocalyptic number.

51740538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51740538 is a wasteful number, since it uses less digits than its factorization.

51740538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8623428.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 51740538 is about 7193.0896004429. The cubic root of 51740538 is about 372.6292823327.

The spelling of 51740538 in words is "fifty-one million, seven hundred forty thousand, five hundred thirty-eight".