67563553 has 2 divisors, whose sum is σ = 67563554. Its totient is φ = 67563552.

The previous prime is 67563547. The next prime is 67563557. The reversal of 67563553 is 35536576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57653649 + 9909904 = 7593^2 + 3148^2 .

It is a cyclic number.

It is not a de Polignac number, because 67563553 - 2⁵ = 67563521 is a prime.

It is not a weakly prime, because it can be changed into another prime (67563557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33781776 + 33781777.

It is an arithmetic number, because the mean of its divisors is an integer number (33781777).

Almost surely, 2^67563553 is an apocalyptic number.

It is an amenable number.

67563553 is a deficient number, since it is larger than the sum of its proper divisors (1).

67563553 is an equidigital number, since it uses as much as digits as its factorization.

67563553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 283500, while the sum is 40.

The square root of 67563553 is about 8219.7051650287. The cubic root of 67563553 is about 407.2903871340.

The spelling of 67563553 in words is "sixty-seven million, five hundred sixty-three thousand, five hundred fifty-three".