51604135171 has 16 divisors (see below), whose sum is σ = 55331389440. Its totient is φ = 47957374080.

The previous prime is 51604135157. The next prime is 51604135199. The reversal of 51604135171 is 17153140615.

It is a cyclic number.

It is not a de Polignac number, because 51604135171 - 2¹⁷ = 51604004099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51604135571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398910 + ... + 512188.

It is an arithmetic number, because the mean of its divisors is an integer number (3458211840).

Almost surely, 2^51604135171 is an apocalyptic number.

51604135171 is a deficient number, since it is larger than the sum of its proper divisors (3727254269).

51604135171 is a wasteful number, since it uses less digits than its factorization.

51604135171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113634.

The product of its (nonzero) digits is 12600, while the sum is 34.

Adding to 51604135171 its reverse (17153140615), we get a palindrome (68757275786).

The spelling of 51604135171 in words is "fifty-one billion, six hundred four million, one hundred thirty-five thousand, one hundred seventy-one".