51265345232171 has 32 divisors (see below), whose sum is σ = 60888172646400. Its totient is φ = 42236533987200.

The previous prime is 51265345232161. The next prime is 51265345232203. The reversal of 51265345232171 is 17123254356215.

It is not a de Polignac number, because 51265345232171 - 2¹⁰ = 51265345231147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51265345232161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 840013160 + ... + 840074186.

It is an arithmetic number, because the mean of its divisors is an integer number (1902755395200).

Almost surely, 2^{51265345232171} is an apocalyptic number.

51265345232171 is a deficient number, since it is larger than the sum of its proper divisors (9622827414229).

51265345232171 is a wasteful number, since it uses less digits than its factorization.

51265345232171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87195.

The product of its digits is 1512000, while the sum is 47.

Adding to 51265345232171 its reverse (17123254356215), we get a palindrome (68388599588386).

The spelling of 51265345232171 in words is "fifty-one trillion, two hundred sixty-five billion, three hundred forty-five million, two hundred thirty-two thousand, one hundred seventy-one".