51515211102132 has 48 divisors (see below), whose sum is σ = 122176597058432. Its totient is φ = 16889692510080.

The previous prime is 51515211102073. The next prime is 51515211102143. The reversal of 51515211102132 is 23120111251515.

It is a self number, because there is not a number n which added to its sum of digits gives 51515211102132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22084398 + ... + 24305370.

Almost surely, 2^{51515211102132} is an apocalyptic number.

It is an amenable number.

51515211102132 is an abundant number, since it is smaller than the sum of its proper divisors (70661385956300).

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

51515211102132 is a wasteful number, since it uses less digits than its factorization.

51515211102132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252728 (or 2252726 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 30.

Adding to 51515211102132 its reverse (23120111251515), we get a palindrome (74635322353647).

The spelling of 51515211102132 in words is "fifty-one trillion, five hundred fifteen billion, two hundred eleven million, one hundred two thousand, one hundred thirty-two".