49527721 has 2 divisors, whose sum is σ = 49527722. Its totient is φ = 49527720.

The previous prime is 49527697. The next prime is 49527733. The reversal of 49527721 is 12772594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36132121 + 13395600 = 6011^2 + 3660^2 .

It is a cyclic number.

It is not a de Polignac number, because 49527721 - 2⁷ = 49527593 is a prime.

It is not a weakly prime, because it can be changed into another prime (49527781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24763860 + 24763861.

It is an arithmetic number, because the mean of its divisors is an integer number (24763861).

Almost surely, 2^49527721 is an apocalyptic number.

It is an amenable number.

49527721 is a deficient number, since it is larger than the sum of its proper divisors (1).

49527721 is an equidigital number, since it uses as much as digits as its factorization.

49527721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The square root of 49527721 is about 7037.5934096820. The cubic root of 49527721 is about 367.2395513752.

The spelling of 49527721 in words is "forty-nine million, five hundred twenty-seven thousand, seven hundred twenty-one".