49920171 has 24 divisors (see below), whose sum is σ = 78534144. Its totient is φ = 28118160.

The previous prime is 49920161. The next prime is 49920173. The reversal of 49920171 is 17102994.

It is not a de Polignac number, because 49920171 - 2⁵ = 49920139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49920173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8046 + ... + 12828.

It is an arithmetic number, because the mean of its divisors is an integer number (3272256).

Almost surely, 2^49920171 is an apocalyptic number.

49920171 is a deficient number, since it is larger than the sum of its proper divisors (28613973).

49920171 is a wasteful number, since it uses less digits than its factorization.

49920171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871 (or 4864 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 49920171 is about 7065.4207942627. The cubic root of 49920171 is about 368.2069837283.

The spelling of 49920171 in words is "forty-nine million, nine hundred twenty thousand, one hundred seventy-one".