51464109 has 8 divisors (see below), whose sum is σ = 68906880. Its totient is φ = 34165376.

The previous prime is 51464099. The next prime is 51464131. The reversal of 51464109 is 90146415.

It is a happy number.

51464109 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 a cyclic number.

It is not a de Polignac number, because 51464109 - 2⁹ = 51463597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51464909) 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 7 ways as a sum of consecutive naturals, for example, 35172 + ... + 36605.

It is an arithmetic number, because the mean of its divisors is an integer number (8613360).

Almost surely, 2^51464109 is an apocalyptic number.

It is an amenable number.

51464109 is a deficient number, since it is larger than the sum of its proper divisors (17442771).

51464109 is a wasteful number, since it uses less digits than its factorization.

51464109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72019.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 51464109 is about 7173.8489669075. The cubic root of 51464109 is about 371.9644939519.

The spelling of 51464109 in words is "fifty-one million, four hundred sixty-four thousand, one hundred nine".