51310097222 has 4 divisors (see below), whose sum is σ = 76965145836. Its totient is φ = 25655048610.

The previous prime is 51310097207. The next prime is 51310097243. The reversal of 51310097222 is 22279001315.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12827524304 + ... + 12827524307.

It is an arithmetic number, because the mean of its divisors is an integer number (19241286459).

Almost surely, 2^51310097222 is an apocalyptic number.

51310097222 is a deficient number, since it is larger than the sum of its proper divisors (25655048614).

51310097222 is a wasteful number, since it uses less digits than its factorization.

51310097222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25655048613.

The product of its (nonzero) digits is 7560, while the sum is 32.

Adding to 51310097222 its reverse (22279001315), we get a palindrome (73589098537).

The spelling of 51310097222 in words is "fifty-one billion, three hundred ten million, ninety-seven thousand, two hundred twenty-two".