50745729 has 16 divisors (see below), whose sum is σ = 70737920. Its totient is φ = 32320080.

The previous prime is 50745707. The next prime is 50745749. The reversal of 50745729 is 92754705.

It is not a de Polignac number, because 50745729 - 2¹⁶ = 50680193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50745749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3894 + ... + 10800.

It is an arithmetic number, because the mean of its divisors is an integer number (4421120).

Almost surely, 2^50745729 is an apocalyptic number.

It is an amenable number.

50745729 is a deficient number, since it is larger than the sum of its proper divisors (19992191).

50745729 is a wasteful number, since it uses less digits than its factorization.

50745729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 50745729 is about 7123.6036526466. The cubic root of 50745729 is about 370.2256451717.

The spelling of 50745729 in words is "fifty million, seven hundred forty-five thousand, seven hundred twenty-nine".