51343221350 has 24 divisors (see below), whose sum is σ = 95568378768. Its totient is φ = 20522237600.

The previous prime is 51343221341. The next prime is 51343221401. The reversal of 51343221350 is 5312234315.

It is a happy number.

It is a super-2 number, since 2×51343221350² (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 11 ways as a sum of consecutive naturals, for example, 307241 + ... + 443940.

It is an arithmetic number, because the mean of its divisors is an integer number (3982015782).

Almost surely, 2^51343221350 is an apocalyptic number.

51343221350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51343221350 is a deficient number, since it is larger than the sum of its proper divisors (44225157418).

51343221350 is a wasteful number, since it uses less digits than its factorization.

51343221350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752560 (or 752555 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 51343221350 its reverse (5312234315), we get a palindrome (56655455665).

The spelling of 51343221350 in words is "fifty-one billion, three hundred forty-three million, two hundred twenty-one thousand, three hundred fifty".