49930171 has 4 divisors (see below), whose sum is σ = 52101072. Its totient is φ = 47759272.

The previous prime is 49930129. The next prime is 49930183. The reversal of 49930171 is 17103994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17103994 = 2 ⋅8551997.

It is a cyclic number.

It is not a de Polignac number, because 49930171 - 2¹⁵ = 49897403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49930471) 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, 1085416 + ... + 1085461.

It is an arithmetic number, because the mean of its divisors is an integer number (13025268).

Almost surely, 2^49930171 is an apocalyptic number.

49930171 is a deficient number, since it is larger than the sum of its proper divisors (2170901).

49930171 is a wasteful number, since it uses less digits than its factorization.

49930171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170900.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 49930171 is about 7066.1284307604. The cubic root of 49930171 is about 368.2315684732.

The spelling of 49930171 in words is "forty-nine million, nine hundred thirty thousand, one hundred seventy-one".