51545052211120 has 80 divisors (see below), whose sum is σ = 131176633033152. Its totient is φ = 18720018938880.

The previous prime is 51545052211117. The next prime is 51545052211127. The reversal of 51545052211120 is 2111225054515.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (51545052211127) 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, 406186972 + ... + 406313851.

Almost surely, 2^{51545052211120} is an apocalyptic number.

It is an amenable number.

51545052211120 is an abundant number, since it is smaller than the sum of its proper divisors (79631580822032).

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

51545052211120 is a wasteful number, since it uses less digits than its factorization.

51545052211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812500910 (or 812500904 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 34.

Adding to 51545052211120 its reverse (2111225054515), we get a palindrome (53656277265635).

The spelling of 51545052211120 in words is "fifty-one trillion, five hundred forty-five billion, fifty-two million, two hundred eleven thousand, one hundred twenty".