51132255312 has 20 divisors (see below), whose sum is σ = 132091659680. Its totient is φ = 17044085088.

The previous prime is 51132255311. The next prime is 51132255323. The reversal of 51132255312 is 21355223115.

51132255312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51132255312² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51132255312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51132255311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532627612 + ... + 532627707.

It is an arithmetic number, because the mean of its divisors is an integer number (6604582984).

Almost surely, 2^51132255312 is an apocalyptic number.

It is an amenable number.

51132255312 is an abundant number, since it is smaller than the sum of its proper divisors (80959404368).

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

51132255312 is a wasteful number, since it uses less digits than its factorization.

51132255312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065255330 (or 1065255324 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

Adding to 51132255312 its reverse (21355223115), we get a palindrome (72487478427).

The spelling of 51132255312 in words is "fifty-one billion, one hundred thirty-two million, two hundred fifty-five thousand, three hundred twelve".