51451941 has 8 divisors (see below), whose sum is σ = 70456864. Its totient is φ = 33374160.

The previous prime is 51451931. The next prime is 51451957. The reversal of 51451941 is 14915415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51451941 - 2¹⁷ = 51320869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51451899 and 51451908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51451921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231655 + ... + 231876.

It is an arithmetic number, because the mean of its divisors is an integer number (8807108).

Almost surely, 2^51451941 is an apocalyptic number.

It is an amenable number.

51451941 is a deficient number, since it is larger than the sum of its proper divisors (19004923).

51451941 is a wasteful number, since it uses less digits than its factorization.

51451941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463571.

The product of its digits is 3600, while the sum is 30.

The square root of 51451941 is about 7173.0008364700. Note that the first 3 decimals coincide. The cubic root of 51451941 is about 371.9351762986.

The spelling of 51451941 in words is "fifty-one million, four hundred fifty-one thousand, nine hundred forty-one".