51113342252 has 96 divisors (see below), whose sum is σ = 113175982080. Its totient is φ = 19704072960.

The previous prime is 51113342251. The next prime is 51113342257. The reversal of 51113342252 is 25224331115.

It is a super-3 number, since 3×51113342252³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (51113342251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 844838 + ... + 903314.

It is an arithmetic number, because the mean of its divisors is an integer number (1178916480).

Almost surely, 2^51113342252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51113342252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56587991040).

51113342252 is an abundant number, since it is smaller than the sum of its proper divisors (62062639828).

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

51113342252 is a wasteful number, since it uses less digits than its factorization.

51113342252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58591 (or 58589 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

Adding to 51113342252 its reverse (25224331115), we get a palindrome (76337673367).

The spelling of 51113342252 in words is "fifty-one billion, one hundred thirteen million, three hundred forty-two thousand, two hundred fifty-two".