50221905 has 16 divisors (see below), whose sum is σ = 80512704. Its totient is φ = 26732480.

The previous prime is 50221901. The next prime is 50221907. The reversal of 50221905 is 50912205.

It is not a de Polignac number, because 50221905 - 2² = 50221901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50221901) 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, 5350 + ... + 11360.

It is an arithmetic number, because the mean of its divisors is an integer number (5032044).

Almost surely, 2^50221905 is an apocalyptic number.

It is an amenable number.

50221905 is a deficient number, since it is larger than the sum of its proper divisors (30290799).

50221905 is a wasteful number, since it uses less digits than its factorization.

50221905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 50221905 is about 7086.7414938038. The cubic root of 50221905 is about 368.9473489261.

The spelling of 50221905 in words is "fifty million, two hundred twenty-one thousand, nine hundred five".