51156302330 has 48 divisors (see below), whose sum is σ = 107174027016. Its totient is φ = 17529644160.

The previous prime is 51156302317. The next prime is 51156302339. The reversal of 51156302330 is 3320365115.

It can be written as a sum of positive squares in 4 ways, for example, as 31456214881 + 19700087449 = 177359^2 + 140357^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51156302293 and 51156302302.

It is not an unprimeable number, because it can be changed into a prime (51156302339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891920 + ... + 947540.

Almost surely, 2^51156302330 is an apocalyptic number.

51156302330 is an abundant number, since it is smaller than the sum of its proper divisors (56017724686).

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

51156302330 is a wasteful number, since it uses less digits than its factorization.

51156302330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57519 (or 57512 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 51156302330 its reverse (3320365115), we get a palindrome (54476667445).

The spelling of 51156302330 in words is "fifty-one billion, one hundred fifty-six million, three hundred two thousand, three hundred thirty".