51032312151240 has 128 divisors (see below), whose sum is σ = 175017127368960. Its totient is φ = 11661248492544.

The previous prime is 51032312151221. The next prime is 51032312151253. The reversal of 51032312151240 is 4215121323015.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 51032312151198 and 51032312151207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5552007 + ... + 11527766.

It is an arithmetic number, because the mean of its divisors is an integer number (1367321307570).

Almost surely, 2^{51032312151240} is an apocalyptic number.

It is an amenable number.

51032312151240 is an abundant number, since it is smaller than the sum of its proper divisors (123984815217720).

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

51032312151240 is a wasteful number, since it uses less digits than its factorization.

51032312151240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17083351 (or 17083347 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 51032312151240 its reverse (4215121323015), we get a palindrome (55247433474255).

The spelling of 51032312151240 in words is "fifty-one trillion, thirty-two billion, three hundred twelve million, one hundred fifty-one thousand, two hundred forty".