50218157 has 4 divisors (see below), whose sum is σ = 54783456. Its totient is φ = 45652860.

The previous prime is 50218141. The next prime is 50218183. The reversal of 50218157 is 75181205.

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 not a de Polignac number, because 50218157 - 2⁴ = 50218141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50218117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282633 + ... + 2282654.

It is an arithmetic number, because the mean of its divisors is an integer number (13695864).

Almost surely, 2^50218157 is an apocalyptic number.

It is an amenable number.

50218157 is a deficient number, since it is larger than the sum of its proper divisors (4565299).

50218157 is a wasteful number, since it uses less digits than its factorization.

50218157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565298.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 50218157 is about 7086.4770513987. The cubic root of 50218157 is about 368.9381706664.

The spelling of 50218157 in words is "fifty million, two hundred eighteen thousand, one hundred fifty-seven".