51350353620 has 96 divisors (see below), whose sum is σ = 148869267456. Its totient is φ = 13211510400.

The previous prime is 51350353601. The next prime is 51350353627. The reversal of 51350353620 is 2635305315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51350353627) 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, 573957 + ... + 657363.

It is an arithmetic number, because the mean of its divisors is an integer number (1550721536).

Almost surely, 2^51350353620 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 51350353620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74434633728).

51350353620 is an abundant number, since it is smaller than the sum of its proper divisors (97518913836).

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

51350353620 is a wasteful number, since it uses less digits than its factorization.

51350353620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83781 (or 83779 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 51350353620 its reverse (2635305315), we get a palindrome (53985658935).

The spelling of 51350353620 in words is "fifty-one billion, three hundred fifty million, three hundred fifty-three thousand, six hundred twenty".