53680049 has 2 divisors, whose sum is σ = 53680050. Its totient is φ = 53680048.

The previous prime is 53680037. The next prime is 53680079. The reversal of 53680049 is 94008635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47886400 + 5793649 = 6920^2 + 2407^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53680049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53680009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26840024 + 26840025.

It is an arithmetic number, because the mean of its divisors is an integer number (26840025).

Almost surely, 2^53680049 is an apocalyptic number.

It is an amenable number.

53680049 is a deficient number, since it is larger than the sum of its proper divisors (1).

53680049 is an equidigital number, since it uses as much as digits as its factorization.

53680049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 53680049 is about 7326.6669775553. Note that the first 3 decimals coincide. The cubic root of 53680049 is about 377.2283301878.

The spelling of 53680049 in words is "fifty-three million, six hundred eighty thousand, forty-nine".