50907121 has 4 divisors (see below), whose sum is σ = 51008832. Its totient is φ = 50805412.

The previous prime is 50907113. The next prime is 50907127. The reversal of 50907121 is 12170905.

50907121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 50907121 - 2³ = 50907113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50907127) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 50101 + ... + 51106.

It is an arithmetic number, because the mean of its divisors is an integer number (12752208).

Almost surely, 2^50907121 is an apocalyptic number.

It is an amenable number.

50907121 is a deficient number, since it is larger than the sum of its proper divisors (101711).

50907121 is a wasteful number, since it uses less digits than its factorization.

50907121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101710.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 50907121 is about 7134.9226344789. The cubic root of 50907121 is about 370.6177190504.

The spelling of 50907121 in words is "fifty million, nine hundred seven thousand, one hundred twenty-one".