51417352252 has 24 divisors (see below), whose sum is σ = 103778148320. Its totient is φ = 21833841600.

The previous prime is 51417352229. The next prime is 51417352267. The reversal of 51417352252 is 25225371415.

It is a super-2 number, since 2×51417352252² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 8420499 + ... + 8426602.

Almost surely, 2^51417352252 is an apocalyptic number.

It is an amenable number.

51417352252 is an abundant number, since it is smaller than the sum of its proper divisors (52360796068).

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

51417352252 is a wasteful number, since it uses less digits than its factorization.

51417352252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16847221 (or 16847219 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The spelling of 51417352252 in words is "fifty-one billion, four hundred seventeen million, three hundred fifty-two thousand, two hundred fifty-two".