51337568226 has 48 divisors (see below), whose sum is σ = 119456621856. Its totient is φ = 14665641984.

The previous prime is 51337568213. The next prime is 51337568231. The reversal of 51337568226 is 62286573315.

It is a happy number.

It is a super-2 number, since 2×51337568226² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3455025 + ... + 3469851.

It is an arithmetic number, because the mean of its divisors is an integer number (2488679622).

Almost surely, 2^51337568226 is an apocalyptic number.

51337568226 is an abundant number, since it is smaller than the sum of its proper divisors (68119053630).

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

51337568226 is a wasteful number, since it uses less digits than its factorization.

51337568226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26623 (or 26616 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The spelling of 51337568226 in words is "fifty-one billion, three hundred thirty-seven million, five hundred sixty-eight thousand, two hundred twenty-six".