50142209 has 8 divisors (see below), whose sum is σ = 54651072. Its totient is φ = 45726480.

The previous prime is 50142203. The next prime is 50142269. The reversal of 50142209 is 90224105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50142209 - 2¹⁶ = 50076673 is a prime.

It is a super-2 number, since 2×50142209² = 5028482246799362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50142203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22157 + ... + 24314.

It is an arithmetic number, because the mean of its divisors is an integer number (6831384).

Almost surely, 2^50142209 is an apocalyptic number.

It is an amenable number.

50142209 is a deficient number, since it is larger than the sum of its proper divisors (4508863).

50142209 is a wasteful number, since it uses less digits than its factorization.

50142209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46567.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 50142209 is about 7081.1163667885. The cubic root of 50142209 is about 368.7520875492.

The spelling of 50142209 in words is "fifty million, one hundred forty-two thousand, two hundred nine".