68364553 has 2 divisors, whose sum is σ = 68364554. Its totient is φ = 68364552.

The previous prime is 68364511. The next prime is 68364557. The reversal of 68364553 is 35546386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66536649 + 1827904 = 8157^2 + 1352^2 .

It is a cyclic number.

It is not a de Polignac number, because 68364553 - 2⁹ = 68364041 is a prime.

It is not a weakly prime, because it can be changed into another prime (68364557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34182276 + 34182277.

It is an arithmetic number, because the mean of its divisors is an integer number (34182277).

Almost surely, 2^68364553 is an apocalyptic number.

It is an amenable number.

68364553 is a deficient number, since it is larger than the sum of its proper divisors (1).

68364553 is an equidigital number, since it uses as much as digits as its factorization.

68364553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 40.

The square root of 68364553 is about 8268.2859771539. The cubic root of 68364553 is about 408.8936123720.

The spelling of 68364553 in words is "sixty-eight million, three hundred sixty-four thousand, five hundred fifty-three".