85068553 has 2 divisors, whose sum is σ = 85068554. Its totient is φ = 85068552.

The previous prime is 85068539. The next prime is 85068569. The reversal of 85068553 is 35586058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70107129 + 14961424 = 8373^2 + 3868^2 .

It is a cyclic number.

It is not a de Polignac number, because 85068553 - 2⁵ = 85068521 is a prime.

It is not a weakly prime, because it can be changed into another prime (85068593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42534276 + 42534277.

It is an arithmetic number, because the mean of its divisors is an integer number (42534277).

Almost surely, 2^85068553 is an apocalyptic number.

It is an amenable number.

85068553 is a deficient number, since it is larger than the sum of its proper divisors (1).

85068553 is an equidigital number, since it uses as much as digits as its factorization.

85068553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 85068553 is about 9223.2615164051. The cubic root of 85068553 is about 439.8011377529.

The spelling of 85068553 in words is "eighty-five million, sixty-eight thousand, five hundred fifty-three".