50739857 has 4 divisors (see below), whose sum is σ = 57988416. Its totient is φ = 43491300.

The previous prime is 50739853. The next prime is 50739869. The reversal of 50739857 is 75893705.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50739857 - 2² = 50739853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50739851) 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 3 ways as a sum of consecutive naturals, for example, 3624269 + ... + 3624282.

It is an arithmetic number, because the mean of its divisors is an integer number (14497104).

Almost surely, 2^50739857 is an apocalyptic number.

It is an amenable number.

50739857 is a deficient number, since it is larger than the sum of its proper divisors (7248559).

50739857 is an equidigital number, since it uses as much as digits as its factorization.

50739857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248558.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 50739857 is about 7123.1914897748. The cubic root of 50739857 is about 370.2113645029.

The spelling of 50739857 in words is "fifty million, seven hundred thirty-nine thousand, eight hundred fifty-seven".