51748573 has 2 divisors, whose sum is σ = 51748574. Its totient is φ = 51748572.

The previous prime is 51748559. The next prime is 51748577. The reversal of 51748573 is 37584715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49182169 + 2566404 = 7013^2 + 1602^2 .

It is a cyclic number.

It is not a de Polignac number, because 51748573 - 2⁹ = 51748061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51748577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25874286 + 25874287.

It is an arithmetic number, because the mean of its divisors is an integer number (25874287).

Almost surely, 2^51748573 is an apocalyptic number.

It is an amenable number.

51748573 is a deficient number, since it is larger than the sum of its proper divisors (1).

51748573 is an equidigital number, since it uses as much as digits as its factorization.

51748573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117600, while the sum is 40.

The square root of 51748573 is about 7193.6481009290. The cubic root of 51748573 is about 372.6485703766.

The spelling of 51748573 in words is "fifty-one million, seven hundred forty-eight thousand, five hundred seventy-three".