51551526426 has 32 divisors (see below), whose sum is σ = 107079433920. Its totient is φ = 16531549056.

The previous prime is 51551526407. The next prime is 51551526473. The reversal of 51551526426 is 62462515515.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1284816 + ... + 1324331.

It is an arithmetic number, because the mean of its divisors is an integer number (3346232310).

Almost surely, 2^51551526426 is an apocalyptic number.

51551526426 is an abundant number, since it is smaller than the sum of its proper divisors (55527907494).

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

51551526426 is a wasteful number, since it uses less digits than its factorization.

51551526426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609278.

The product of its digits is 360000, while the sum is 42.

The spelling of 51551526426 in words is "fifty-one billion, five hundred fifty-one million, five hundred twenty-six thousand, four hundred twenty-six".