49805131 has 2 divisors, whose sum is σ = 49805132. Its totient is φ = 49805130.

The previous prime is 49805113. The next prime is 49805149. The reversal of 49805131 is 13150894.

Together with previous prime (49805113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (49805113) and next prime (49805149).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49805131 is a prime.

It is a super-2 number, since 2×49805131² = 4961102147854322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49805093 and 49805102.

It is not a weakly prime, because it can be changed into another prime (49805191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24902565 + 24902566.

It is an arithmetic number, because the mean of its divisors is an integer number (24902566).

Almost surely, 2^49805131 is an apocalyptic number.

49805131 is a deficient number, since it is larger than the sum of its proper divisors (1).

49805131 is an equidigital number, since it uses as much as digits as its factorization.

49805131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 49805131 is about 7057.2750406938. The cubic root of 49805131 is about 367.9239243931.

The spelling of 49805131 in words is "forty-nine million, eight hundred five thousand, one hundred thirty-one".