51575123 has 2 divisors, whose sum is σ = 51575124. Its totient is φ = 51575122.

The previous prime is 51575113. The next prime is 51575141. The reversal of 51575123 is 32157515.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51575123 - 2⁸ = 51574867 is a prime.

It is not a weakly prime, because it can be changed into another prime (51575113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25787561 + 25787562.

It is an arithmetic number, because the mean of its divisors is an integer number (25787562).

Almost surely, 2^51575123 is an apocalyptic number.

51575123 is a deficient number, since it is larger than the sum of its proper divisors (1).

51575123 is an equidigital number, since it uses as much as digits as its factorization.

51575123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5250, while the sum is 29.

The square root of 51575123 is about 7181.5822072855. The cubic root of 51575123 is about 372.2317585966.

It can be divided in two parts, 5157512 and 3, that added together give a palindrome (5157515).

The spelling of 51575123 in words is "fifty-one million, five hundred seventy-five thousand, one hundred twenty-three".