51053258172 has 144 divisors (see below), whose sum is σ = 146053152000. Its totient is φ = 13801245696.

The previous prime is 51053258159. The next prime is 51053258213. The reversal of 51053258172 is 27185235015.

It is a self number, because there is not a number n which added to its sum of digits gives 51053258172.

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 47 ways as a sum of consecutive naturals, for example, 10376329 + ... + 10381247.

It is an arithmetic number, because the mean of its divisors is an integer number (1014258000).

Almost surely, 2^51053258172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51053258172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73026576000).

51053258172 is an abundant number, since it is smaller than the sum of its proper divisors (94999893828).

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

51053258172 is a wasteful number, since it uses less digits than its factorization.

51053258172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888 (or 5879 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 51053258172 in words is "fifty-one billion, fifty-three million, two hundred fifty-eight thousand, one hundred seventy-two".