51112540452 has 24 divisors (see below), whose sum is σ = 125539573600. Its totient is φ = 16140802176.

The previous prime is 51112540399. The next prime is 51112540477. The reversal of 51112540452 is 25404521115.

It is a super-2 number, since 2×51112540452² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112088677 + ... + 112089132.

Almost surely, 2^51112540452 is an apocalyptic number.

It is an amenable number.

51112540452 is an abundant number, since it is smaller than the sum of its proper divisors (74427033148).

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

51112540452 is a wasteful number, since it uses less digits than its factorization.

51112540452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224177835 (or 224177833 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 51112540452 in words is "fifty-one billion, one hundred twelve million, five hundred forty thousand, four hundred fifty-two".