51101105051504 has 40 divisors (see below), whose sum is σ = 104327135552640. Its totient is φ = 24180754627008.

The previous prime is 51101105051471. The next prime is 51101105051527. The reversal of 51101105051504 is 40515050110115.

It is a super-2 number, since 2×51101105051504² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86622134 + ... + 87210069.

It is an arithmetic number, because the mean of its divisors is an integer number (2608178388816).

Almost surely, 2^{51101105051504} is an apocalyptic number.

It is an amenable number.

51101105051504 is an abundant number, since it is smaller than the sum of its proper divisors (53226030501136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51101105051504 is a wasteful number, since it uses less digits than its factorization.

51101105051504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173833197 (or 173833191 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 29.

Adding to 51101105051504 its reverse (40515050110115), we get a palindrome (91616155161619).

The spelling of 51101105051504 in words is "fifty-one trillion, one hundred one billion, one hundred five million, fifty-one thousand, five hundred four".