51232655041040 has 60 divisors (see below), whose sum is σ = 130929072380652. Its totient is φ = 18630056375040.

The previous prime is 51232655041031. The next prime is 51232655041069. The reversal of 51232655041040 is 4014055623215.

It can be written as a sum of positive squares in 2 ways, for example, as 28021226946064 + 23211428094976 = 5293508^2 + 4817824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51232655040985 and 51232655041003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2646305147 + ... + 2646324506.

Almost surely, 2^{51232655041040} is an apocalyptic number.

It is an amenable number.

51232655041040 is an abundant number, since it is smaller than the sum of its proper divisors (79696417339612).

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

51232655041040 is a wasteful number, since it uses less digits than its factorization.

51232655041040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5292629688 (or 5292629671 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 51232655041040 in words is "fifty-one trillion, two hundred thirty-two billion, six hundred fifty-five million, forty-one thousand, forty".