50221145 has 32 divisors (see below), whose sum is σ = 70253568. Its totient is φ = 34126848.

The previous prime is 50221133. The next prime is 50221159. The reversal of 50221145 is 54112205.

It is a cyclic number.

It is not a de Polignac number, because 50221145 - 2⁶ = 50221081 is a prime.

It is a super-2 number, since 2×50221145² = 5044326810222050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51452 + ... + 52418.

It is an arithmetic number, because the mean of its divisors is an integer number (2195424).

Almost surely, 2^50221145 is an apocalyptic number.

It is an amenable number.

50221145 is a deficient number, since it is larger than the sum of its proper divisors (20032423).

50221145 is a wasteful number, since it uses less digits than its factorization.

50221145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 50221145 is about 7086.6878723421. The cubic root of 50221145 is about 368.9454878431.

The spelling of 50221145 in words is "fifty million, two hundred twenty-one thousand, one hundred forty-five".