51041945 has 16 divisors (see below), whose sum is σ = 64644480. Its totient is φ = 38611584.

The previous prime is 51041927. The next prime is 51041951. The reversal of 51041945 is 54914015.

51041945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51041945 - 2¹⁸ = 50779801 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7742 + ... + 12728.

It is an arithmetic number, because the mean of its divisors is an integer number (4040280).

Almost surely, 2^51041945 is an apocalyptic number.

It is an amenable number.

51041945 is a deficient number, since it is larger than the sum of its proper divisors (13602535).

51041945 is a wasteful number, since it uses less digits than its factorization.

51041945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 51041945 is about 7144.3645623666. The cubic root of 51041945 is about 370.9446157907.

The spelling of 51041945 in words is "fifty-one million, forty-one thousand, nine hundred forty-five".