51003248172 has 48 divisors (see below), whose sum is σ = 120143654400. Its totient is φ = 16838902080.

The previous prime is 51003248159. The next prime is 51003248269. The reversal of 51003248172 is 27184230015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4743979 + ... + 4754717.

It is an arithmetic number, because the mean of its divisors is an integer number (2502992800).

Almost surely, 2^51003248172 is an apocalyptic number.

It is an amenable number.

51003248172 is an abundant number, since it is smaller than the sum of its proper divisors (69140406228).

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

51003248172 is a wasteful number, since it uses less digits than its factorization.

51003248172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14486 (or 14484 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 51003248172 its reverse (27184230015), we get a palindrome (78187478187).

The spelling of 51003248172 in words is "fifty-one billion, three million, two hundred forty-eight thousand, one hundred seventy-two".