51132005412 has 48 divisors (see below), whose sum is σ = 120421017024. Its totient is φ = 16885440000.

The previous prime is 51132005389. The next prime is 51132005413. The reversal of 51132005412 is 21450023115.

It is a happy number.

It is a super-2 number, since 2×51132005412² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51132005413) 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, 917712 + ... + 971832.

It is an arithmetic number, because the mean of its divisors is an integer number (2508771188).

Almost surely, 2^51132005412 is an apocalyptic number.

It is an amenable number.

51132005412 is an abundant number, since it is smaller than the sum of its proper divisors (69289011612).

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

51132005412 is a wasteful number, since it uses less digits than its factorization.

51132005412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54860 (or 54858 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 51132005412 its reverse (21450023115), we get a palindrome (72582028527).

The spelling of 51132005412 in words is "fifty-one billion, one hundred thirty-two million, five thousand, four hundred twelve".