82054649 has 2 divisors, whose sum is σ = 82054650. Its totient is φ = 82054648.

The previous prime is 82054633. The next prime is 82054657. The reversal of 82054649 is 94645028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52461049 + 29593600 = 7243^2 + 5440^2 .

It is a cyclic number.

It is not a de Polignac number, because 82054649 - 2⁴ = 82054633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82054549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41027324 + 41027325.

It is an arithmetic number, because the mean of its divisors is an integer number (41027325).

Almost surely, 2^82054649 is an apocalyptic number.

It is an amenable number.

82054649 is a deficient number, since it is larger than the sum of its proper divisors (1).

82054649 is an equidigital number, since it uses as much as digits as its factorization.

82054649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 82054649 is about 9058.4021217873. The cubic root of 82054649 is about 434.5446399772.

The spelling of 82054649 in words is "eighty-two million, fifty-four thousand, six hundred forty-nine".