51323507575 has 6 divisors (see below), whose sum is σ = 63641149424. Its totient is φ = 41058806040.

The previous prime is 51323507561. The next prime is 51323507623. The reversal of 51323507575 is 57570532315.

It is not a de Polignac number, because 51323507575 - 2²¹ = 51321410423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026470127 + ... + 1026470176.

Almost surely, 2^51323507575 is an apocalyptic number.

51323507575 is a deficient number, since it is larger than the sum of its proper divisors (12317641849).

51323507575 is a wasteful number, since it uses less digits than its factorization.

51323507575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052940313 (or 2052940308 counting only the distinct ones).

The product of its (nonzero) digits is 551250, while the sum is 43.

The spelling of 51323507575 in words is "fifty-one billion, three hundred twenty-three million, five hundred seven thousand, five hundred seventy-five".