51256073 has 8 divisors (see below), whose sum is σ = 56864160. Its totient is φ = 45806080.

The previous prime is 51256033. The next prime is 51256081. The reversal of 51256073 is 37065215.

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 51256073 - 2⁸ = 51255817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51256013) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 38840 + ... + 40137.

It is an arithmetic number, because the mean of its divisors is an integer number (7108020).

Almost surely, 2^51256073 is an apocalyptic number.

It is an amenable number.

51256073 is a deficient number, since it is larger than the sum of its proper divisors (5608087).

51256073 is a wasteful number, since it uses less digits than its factorization.

51256073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79047.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 51256073 is about 7159.3346757922. The cubic root of 51256073 is about 371.4626133846.

The spelling of 51256073 in words is "fifty-one million, two hundred fifty-six thousand, seventy-three".