49871517 has 8 divisors (see below), whose sum is σ = 67488096. Its totient is φ = 32751312.

The previous prime is 49871513. The next prime is 49871519. The reversal of 49871517 is 71517894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49871517 - 2² = 49871513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49871513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123858 + ... + 124259.

It is an arithmetic number, because the mean of its divisors is an integer number (8436012).

Almost surely, 2^49871517 is an apocalyptic number.

It is an amenable number.

49871517 is a deficient number, since it is larger than the sum of its proper divisors (17616579).

49871517 is a wasteful number, since it uses less digits than its factorization.

49871517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248187.

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

The square root of 49871517 is about 7061.9768478805. The cubic root of 49871517 is about 368.0873222401.

The spelling of 49871517 in words is "forty-nine million, eight hundred seventy-one thousand, five hundred seventeen".