50117997 has 4 divisors (see below), whose sum is σ = 66824000. Its totient is φ = 33411996.

The previous prime is 50117983. The next prime is 50117999. The reversal of 50117997 is 79971105.

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 50117997 - 2⁴ = 50117981 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 (50117999) 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, 8352997 + ... + 8353002.

It is an arithmetic number, because the mean of its divisors is an integer number (16706000).

Almost surely, 2^50117997 is an apocalyptic number.

It is an amenable number.

50117997 is a deficient number, since it is larger than the sum of its proper divisors (16706003).

50117997 is a wasteful number, since it uses less digits than its factorization.

50117997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16706002.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 50117997 is about 7079.4065429243. The cubic root of 50117997 is about 368.6927252996.

The spelling of 50117997 in words is "fifty million, one hundred seventeen thousand, nine hundred ninety-seven".