50572729 has 2 divisors, whose sum is σ = 50572730. Its totient is φ = 50572728.

The previous prime is 50572727. The next prime is 50572733. The reversal of 50572729 is 92727505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25522704 + 25050025 = 5052^2 + 5005^2 .

It is a cyclic number.

It is not a de Polignac number, because 50572729 - 2¹ = 50572727 is a prime.

Together with 50572727, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50572727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25286364 + 25286365.

It is an arithmetic number, because the mean of its divisors is an integer number (25286365).

Almost surely, 2^50572729 is an apocalyptic number.

It is an amenable number.

50572729 is a deficient number, since it is larger than the sum of its proper divisors (1).

50572729 is an equidigital number, since it uses as much as digits as its factorization.

50572729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 50572729 is about 7111.4505552665. The cubic root of 50572729 is about 369.8044474317.

The spelling of 50572729 in words is "fifty million, five hundred seventy-two thousand, seven hundred twenty-nine".