53396772449 has 2 divisors, whose sum is σ = 53396772450. Its totient is φ = 53396772448.

The previous prime is 53396772433. The next prime is 53396772463. The reversal of 53396772449 is 94427769335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47428128400 + 5968644049 = 217780^2 + 77257^2 .

It is a cyclic number.

It is not a de Polignac number, because 53396772449 - 2⁴ = 53396772433 is a prime.

It is not a weakly prime, because it can be changed into another prime (53396772479) 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, 26698386224 + 26698386225.

It is an arithmetic number, because the mean of its divisors is an integer number (26698386225).

Almost surely, 2^53396772449 is an apocalyptic number.

It is an amenable number.

53396772449 is a deficient number, since it is larger than the sum of its proper divisors (1).

53396772449 is an equidigital number, since it uses as much as digits as its factorization.

53396772449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 59.

The spelling of 53396772449 in words is "fifty-three billion, three hundred ninety-six million, seven hundred seventy-two thousand, four hundred forty-nine".