49871157 has 16 divisors (see below), whose sum is σ = 78446592. Its totient is φ = 27578160.

The previous prime is 49871147. The next prime is 49871161. The reversal of 49871157 is 75117894.

It is not a de Polignac number, because 49871157 - 2⁶ = 49871093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49871117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37653 + ... + 38954.

It is an arithmetic number, because the mean of its divisors is an integer number (4902912).

Almost surely, 2^49871157 is an apocalyptic number.

It is an amenable number.

49871157 is a deficient number, since it is larger than the sum of its proper divisors (28575435).

49871157 is a wasteful number, since it uses less digits than its factorization.

49871157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76648.

The product of its digits is 70560, while the sum is 42.

The square root of 49871157 is about 7061.9513592208. The cubic root of 49871157 is about 368.0864365525.

The spelling of 49871157 in words is "forty-nine million, eight hundred seventy-one thousand, one hundred fifty-seven".