51248569584 has 160 divisors (see below), whose sum is σ = 145260544000. Its totient is φ = 15508765440.

The previous prime is 51248569583. The next prime is 51248569601. The reversal of 51248569584 is 48596584215.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51248569583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2903217 + ... + 2920815.

It is an arithmetic number, because the mean of its divisors is an integer number (907878400).

Almost surely, 2^51248569584 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 51248569584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72630272000).

51248569584 is an abundant number, since it is smaller than the sum of its proper divisors (94011974416).

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

51248569584 is a wasteful number, since it uses less digits than its factorization.

51248569584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17763 (or 17757 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 57.

The spelling of 51248569584 in words is "fifty-one billion, two hundred forty-eight million, five hundred sixty-nine thousand, five hundred eighty-four".