51164618 has 8 divisors (see below), whose sum is σ = 77464512. Its totient is φ = 25343116.

The previous prime is 51164569. The next prime is 51164629. The reversal of 51164618 is 81646115.

51164618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 119330 + ... + 119757.

It is an arithmetic number, because the mean of its divisors is an integer number (9683064).

Almost surely, 2^51164618 is an apocalyptic number.

51164618 is a deficient number, since it is larger than the sum of its proper divisors (26299894).

51164618 is a wasteful number, since it uses less digits than its factorization.

51164618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239196.

The product of its digits is 5760, while the sum is 32.

The square root of 51164618 is about 7152.9447083002. The cubic root of 51164618 is about 371.2415511989.

The spelling of 51164618 in words is "fifty-one million, one hundred sixty-four thousand, six hundred eighteen".