51133055412 has 48 divisors (see below), whose sum is σ = 120798720000. Its totient is φ = 16833030240.

The previous prime is 51133055399. The next prime is 51133055437. The reversal of 51133055412 is 21455033115.

51133055412 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 2×51133055412² (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 51133055412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238339 + ... + 398837.

It is an arithmetic number, because the mean of its divisors is an integer number (2516640000).

Almost surely, 2^51133055412 is an apocalyptic number.

It is an amenable number.

51133055412 is an abundant number, since it is smaller than the sum of its proper divisors (69665664588).

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

51133055412 is a wasteful number, since it uses less digits than its factorization.

51133055412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160836 (or 160834 counting only the distinct ones).

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

Adding to 51133055412 its reverse (21455033115), we get a palindrome (72588088527).

The spelling of 51133055412 in words is "fifty-one billion, one hundred thirty-three million, fifty-five thousand, four hundred twelve".