51110325012 has 48 divisors (see below), whose sum is σ = 124478000640. Its totient is φ = 16291400928.

The previous prime is 51110325001. The next prime is 51110325031. The reversal of 51110325012 is 21052301115.

It is a super-2 number, since 2×51110325012² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51110325012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018503 + ... + 1067505.

It is an arithmetic number, because the mean of its divisors is an integer number (2593291680).

Almost surely, 2^51110325012 is an apocalyptic number.

It is an amenable number.

51110325012 is an abundant number, since it is smaller than the sum of its proper divisors (73367675628).

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

51110325012 is a wasteful number, since it uses less digits than its factorization.

51110325012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52812 (or 52810 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 51110325012 its reverse (21052301115), we get a palindrome (72162626127).

The spelling of 51110325012 in words is "fifty-one billion, one hundred ten million, three hundred twenty-five thousand, twelve".