51550806232578 has 8 divisors (see below), whose sum is σ = 103101612465168. Its totient is φ = 17183602077524.

The previous prime is 51550806232567. The next prime is 51550806232603. The reversal of 51550806232578 is 87523260805515.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

51550806232578 is an admirable 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, 4295900519376 + ... + 4295900519387.

It is an arithmetic number, because the mean of its divisors is an integer number (12887701558146).

Almost surely, 2^{51550806232578} is an apocalyptic number.

51550806232578 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51550806232578 is a wasteful number, since it uses less digits than its factorization.

51550806232578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8591801038768.

The product of its (nonzero) digits is 20160000, while the sum is 57.

The spelling of 51550806232578 in words is "fifty-one trillion, five hundred fifty billion, eight hundred six million, two hundred thirty-two thousand, five hundred seventy-eight".