51472148520 has 64 divisors (see below), whose sum is σ = 166294638720. Its totient is φ = 12670066944.

The previous prime is 51472148509. The next prime is 51472148521. The reversal of 51472148520 is 2584127415.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (51472148521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16495924 + ... + 16499043.

It is an arithmetic number, because the mean of its divisors is an integer number (2598353730).

Almost surely, 2^51472148520 is an apocalyptic number.

It is an amenable number.

51472148520 is an abundant number, since it is smaller than the sum of its proper divisors (114822490200).

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

51472148520 is a wasteful number, since it uses less digits than its factorization.

51472148520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32994994 (or 32994990 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 51472148520 in words is "fifty-one billion, four hundred seventy-two million, one hundred forty-eight thousand, five hundred twenty".