51450005 has 8 divisors (see below), whose sum is σ = 64989600. Its totient is φ = 38993616.

The previous prime is 51449977. The next prime is 51450013. The reversal of 51450005 is 50005415.

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 51450005 - 2⁶ = 51449941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270695 + ... + 270884.

It is an arithmetic number, because the mean of its divisors is an integer number (8123700).

Almost surely, 2^51450005 is an apocalyptic number.

It is an amenable number.

51450005 is a deficient number, since it is larger than the sum of its proper divisors (13539595).

51450005 is a wasteful number, since it uses less digits than its factorization.

51450005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541603.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 51450005 is about 7172.8658847075. The cubic root of 51450005 is about 371.9305112622.

The spelling of 51450005 in words is "fifty-one million, four hundred fifty thousand, five".