49678481 has 2 divisors, whose sum is σ = 49678482. Its totient is φ = 49678480.

The previous prime is 49678477. The next prime is 49678493. The reversal of 49678481 is 18487694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40436881 + 9241600 = 6359^2 + 3040^2 .

It is a cyclic number.

It is not a de Polignac number, because 49678481 - 2² = 49678477 is a prime.

It is a super-2 number, since 2×49678481² = 4935902948934722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49678451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24839240 + 24839241.

It is an arithmetic number, because the mean of its divisors is an integer number (24839241).

Almost surely, 2^49678481 is an apocalyptic number.

It is an amenable number.

49678481 is a deficient number, since it is larger than the sum of its proper divisors (1).

49678481 is an equidigital number, since it uses as much as digits as its factorization.

49678481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The square root of 49678481 is about 7048.2963189696. The cubic root of 49678481 is about 367.6117937766.

The spelling of 49678481 in words is "forty-nine million, six hundred seventy-eight thousand, four hundred eighty-one".