51355001312 has 24 divisors (see below), whose sum is σ = 105501036816. Its totient is φ = 24561087232.

The previous prime is 51355001279. The next prime is 51355001329. The reversal of 51355001312 is 21310055315.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34887173 + ... + 34888644.

It is an arithmetic number, because the mean of its divisors is an integer number (4395876534).

Almost surely, 2^51355001312 is an apocalyptic number.

It is an amenable number.

51355001312 is an abundant number, since it is smaller than the sum of its proper divisors (54146035504).

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

51355001312 is a wasteful number, since it uses less digits than its factorization.

51355001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69775850 (or 69775842 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

Adding to 51355001312 its reverse (21310055315), we get a palindrome (72665056627).

The spelling of 51355001312 in words is "fifty-one billion, three hundred fifty-five million, one thousand, three hundred twelve".