51333120032 has 48 divisors (see below), whose sum is σ = 111659409792. Its totient is φ = 23106462720.

The previous prime is 51333120029. The next prime is 51333120043. The reversal of 51333120032 is 23002133315.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2038844 + ... + 2063867.

It is an arithmetic number, because the mean of its divisors is an integer number (2326237704).

Almost surely, 2^51333120032 is an apocalyptic number.

It is an amenable number.

51333120032 is an abundant number, since it is smaller than the sum of its proper divisors (60326289760).

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

51333120032 is a wasteful number, since it uses less digits than its factorization.

51333120032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102761 (or 4102753 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 51333120032 its reverse (23002133315), we get a palindrome (74335253347).

The spelling of 51333120032 in words is "fifty-one billion, three hundred thirty-three million, one hundred twenty thousand, thirty-two".