50128707 has 16 divisors (see below), whose sum is σ = 73416960. Its totient is φ = 30282912.

The previous prime is 50128703. The next prime is 50128709. The reversal of 50128707 is 70782105.

It is a happy number.

It is not a de Polignac number, because 50128707 - 2² = 50128703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50128703) 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, 17808 + ... + 20429.

It is an arithmetic number, because the mean of its divisors is an integer number (4588560).

Almost surely, 2^50128707 is an apocalyptic number.

50128707 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

50128707 is a deficient number, since it is larger than the sum of its proper divisors (23288253).

50128707 is a wasteful number, since it uses less digits than its factorization.

50128707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38282.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 50128707 is about 7080.1629218543. The cubic root of 50128707 is about 368.7189861114.

The spelling of 50128707 in words is "fifty million, one hundred twenty-eight thousand, seven hundred seven".