49120081 has 2 divisors, whose sum is σ = 49120082. Its totient is φ = 49120080.

The previous prime is 49120051. The next prime is 49120103. The reversal of 49120081 is 18002194.

It is a happy number.

49120081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38937600 + 10182481 = 6240^2 + 3191^2 .

It is a cyclic number.

It is not a de Polignac number, because 49120081 - 2¹⁷ = 48989009 is a prime.

It is a super-2 number, since 2×49120081² = 4825564714893122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49120051) 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, 24560040 + 24560041.

It is an arithmetic number, because the mean of its divisors is an integer number (24560041).

Almost surely, 2^49120081 is an apocalyptic number.

It is an amenable number.

49120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

49120081 is an equidigital number, since it uses as much as digits as its factorization.

49120081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 49120081 is about 7008.5719658144. The cubic root of 49120081 is about 366.2292476215.

The spelling of 49120081 in words is "forty-nine million, one hundred twenty thousand, eighty-one".