48311591 has 2 divisors, whose sum is σ = 48311592. Its totient is φ = 48311590.

The previous prime is 48311551. The next prime is 48311639. The reversal of 48311591 is 19511384.

48311591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48311591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48311531) 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 as a sum of consecutive naturals, namely, 24155795 + 24155796.

It is an arithmetic number, because the mean of its divisors is an integer number (24155796).

Almost surely, 2^48311591 is an apocalyptic number.

48311591 is a deficient number, since it is larger than the sum of its proper divisors (1).

48311591 is an equidigital number, since it uses as much as digits as its factorization.

48311591 is an odious number, because the sum of its binary digits is odd.

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

The square root of 48311591 is about 6950.6539980062. The cubic root of 48311591 is about 364.2088097704.

The spelling of 48311591 in words is "forty-eight million, three hundred eleven thousand, five hundred ninety-one".