51409005 has 16 divisors (see below), whose sum is σ = 84908544. Its totient is φ = 26533440.

The previous prime is 51408997. The next prime is 51409019. The reversal of 51409005 is 50090415.

It is not a de Polignac number, because 51409005 - 2³ = 51408997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54814 + ... + 55743.

It is an arithmetic number, because the mean of its divisors is an integer number (5306784).

Almost surely, 2^51409005 is an apocalyptic number.

It is an amenable number.

51409005 is a deficient number, since it is larger than the sum of its proper divisors (33499539).

51409005 is a wasteful number, since it uses less digits than its factorization.

51409005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110596.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 51409005 is about 7170.0073221720. The cubic root of 51409005 is about 371.8316890924.

The spelling of 51409005 in words is "fifty-one million, four hundred nine thousand, five".