51555064 has 16 divisors (see below), whose sum is σ = 105453720. Its totient is φ = 23434080.

The previous prime is 51555047. The next prime is 51555089. The reversal of 51555064 is 46055515.

51555064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292839 + ... + 293014.

Almost surely, 2^51555064 is an apocalyptic number.

It is an amenable number.

51555064 is an abundant number, since it is smaller than the sum of its proper divisors (53898656).

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

51555064 is a wasteful number, since it uses less digits than its factorization.

51555064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585870 (or 585866 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 51555064 is about 7180.1855129237. The cubic root of 51555064 is about 372.1834952440.

The spelling of 51555064 in words is "fifty-one million, five hundred fifty-five thousand, sixty-four".