85236653 has 2 divisors, whose sum is σ = 85236654. Its totient is φ = 85236652.

The previous prime is 85236647. The next prime is 85236659. The reversal of 85236653 is 35663258.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (85236647) and next prime (85236659).

It can be written as a sum of positive squares in only one way, i.e., 50154724 + 35081929 = 7082^2 + 5923^2 .

It is a cyclic number.

It is not a de Polignac number, because 85236653 - 2⁴ = 85236637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85236659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42618326 + 42618327.

It is an arithmetic number, because the mean of its divisors is an integer number (42618327).

Almost surely, 2^85236653 is an apocalyptic number.

It is an amenable number.

85236653 is a deficient number, since it is larger than the sum of its proper divisors (1).

85236653 is an equidigital number, since it uses as much as digits as its factorization.

85236653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 38.

The square root of 85236653 is about 9232.3698474444. The cubic root of 85236653 is about 440.0906373197.

The spelling of 85236653 in words is "eighty-five million, two hundred thirty-six thousand, six hundred fifty-three".