49385531 has 16 divisors (see below), whose sum is σ = 55776000. Its totient is φ = 43385760.

The previous prime is 49385519. The next prime is 49385549. The reversal of 49385531 is 13558394.

It is a happy number.

49385531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49385531 is a prime.

It is a super-2 number, since 2×49385531² = 4877861344303922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49385551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98720 + ... + 99218.

It is an arithmetic number, because the mean of its divisors is an integer number (3486000).

Almost surely, 2^49385531 is an apocalyptic number.

49385531 is a deficient number, since it is larger than the sum of its proper divisors (6390469).

49385531 is a wasteful number, since it uses less digits than its factorization.

49385531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866.

The product of its digits is 64800, while the sum is 38.

The square root of 49385531 is about 7027.4839736566. The cubic root of 49385531 is about 366.8877763719.

The spelling of 49385531 in words is "forty-nine million, three hundred eighty-five thousand, five hundred thirty-one".