51054647 has 8 divisors (see below), whose sum is σ = 59337600. Its totient is φ = 43019064.

The previous prime is 51054629. The next prime is 51054649. The reversal of 51054647 is 74645015.

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 51054647 - 2¹⁰ = 51053623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51054649) 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, 61397 + ... + 62222.

It is an arithmetic number, because the mean of its divisors is an integer number (7417200).

Almost surely, 2^51054647 is an apocalyptic number.

51054647 is a deficient number, since it is larger than the sum of its proper divisors (8282953).

51054647 is a wasteful number, since it uses less digits than its factorization.

51054647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123685.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 51054647 is about 7145.2534594652. The cubic root of 51054647 is about 370.9753836080.

The spelling of 51054647 in words is "fifty-one million, fifty-four thousand, six hundred forty-seven".