51428579 has 4 divisors (see below), whose sum is σ = 51443184. Its totient is φ = 51413976.

The previous prime is 51428539. The next prime is 51428581. The reversal of 51428579 is 97582415.

51428579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51428579 - 2¹⁶ = 51363043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51428539) 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, 1589 + ... + 10265.

It is an arithmetic number, because the mean of its divisors is an integer number (12860796).

Almost surely, 2^51428579 is an apocalyptic number.

51428579 is a deficient number, since it is larger than the sum of its proper divisors (14605).

51428579 is an equidigital number, since it uses as much as digits as its factorization.

51428579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14604.

The product of its digits is 100800, while the sum is 41.

The square root of 51428579 is about 7171.3721838990. The cubic root of 51428579 is about 371.8788747943.

The spelling of 51428579 in words is "fifty-one million, four hundred twenty-eight thousand, five hundred seventy-nine".