53433033449 has 2 divisors, whose sum is σ = 53433033450. Its totient is φ = 53433033448.

The previous prime is 53433033419. The next prime is 53433033463. The reversal of 53433033449 is 94433033435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53432634025 + 399424 = 231155^2 + 632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53433033449 is a prime.

It is not a weakly prime, because it can be changed into another prime (53433033419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26716516724 + 26716516725.

It is an arithmetic number, because the mean of its divisors is an integer number (26716516725).

Almost surely, 2^53433033449 is an apocalyptic number.

It is an amenable number.

53433033449 is a deficient number, since it is larger than the sum of its proper divisors (1).

53433033449 is an equidigital number, since it uses as much as digits as its factorization.

53433033449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 41.

The spelling of 53433033449 in words is "fifty-three billion, four hundred thirty-three million, thirty-three thousand, four hundred forty-nine".