49518131 has 8 divisors (see below), whose sum is σ = 53736144. Its totient is φ = 45358560.

The previous prime is 49518121. The next prime is 49518137. The reversal of 49518131 is 13181594.

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

It is not a de Polignac number, because 49518131 - 2¹⁴ = 49501747 is a prime.

It is a super-2 number, since 2×49518131² = 4904090595466322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49518137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12836 + ... + 16241.

It is an arithmetic number, because the mean of its divisors is an integer number (6717018).

Almost surely, 2^49518131 is an apocalyptic number.

49518131 is a deficient number, since it is larger than the sum of its proper divisors (4218013).

49518131 is a wasteful number, since it uses less digits than its factorization.

49518131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29221.

The product of its digits is 4320, while the sum is 32.

The square root of 49518131 is about 7036.9120358294. The cubic root of 49518131 is about 367.2158471105.

The spelling of 49518131 in words is "forty-nine million, five hundred eighteen thousand, one hundred thirty-one".