51325556 has 12 divisors (see below), whose sum is σ = 89960640. Its totient is φ = 25622520.

The previous prime is 51325523. The next prime is 51325559. The reversal of 51325556 is 65552315.

51325556 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 not an unprimeable number, because it can be changed into a prime (51325559) by changing a digit.

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, 7100 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (7496720).

Almost surely, 2^51325556 is an apocalyptic number.

It is an amenable number.

51325556 is a deficient number, since it is larger than the sum of its proper divisors (38635084).

51325556 is a wasteful number, since it uses less digits than its factorization.

51325556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20134 (or 20132 counting only the distinct ones).

The product of its digits is 22500, while the sum is 32.

The square root of 51325556 is about 7164.1856480692. The cubic root of 51325556 is about 371.6303898135.

The spelling of 51325556 in words is "fifty-one million, three hundred twenty-five thousand, five hundred fifty-six".