51055550564 has 36 divisors (see below), whose sum is σ = 92545614000. Its totient is φ = 24644561040.

The previous prime is 51055550561. The next prime is 51055550569. The reversal of 51055550564 is 46505555015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51055550561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1594787 + ... + 1626485.

It is an arithmetic number, because the mean of its divisors is an integer number (2570711500).

Almost surely, 2^51055550564 is an apocalyptic number.

It is an amenable number.

51055550564 is a deficient number, since it is larger than the sum of its proper divisors (41490063436).

51055550564 is a wasteful number, since it uses less digits than its factorization.

51055550564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32184 (or 32151 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 51055550564 in words is "fifty-one billion, fifty-five million, five hundred fifty thousand, five hundred sixty-four".