85454653 has 2 divisors, whose sum is σ = 85454654. Its totient is φ = 85454652.

The previous prime is 85454651. The next prime is 85454657. The reversal of 85454653 is 35645458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83503044 + 1951609 = 9138^2 + 1397^2 .

It is a cyclic number.

It is not a de Polignac number, because 85454653 - 2¹ = 85454651 is a prime.

Together with 85454651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85454651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42727326 + 42727327.

It is an arithmetic number, because the mean of its divisors is an integer number (42727327).

Almost surely, 2^85454653 is an apocalyptic number.

It is an amenable number.

85454653 is a deficient number, since it is larger than the sum of its proper divisors (1).

85454653 is an equidigital number, since it uses as much as digits as its factorization.

85454653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 40.

The square root of 85454653 is about 9244.1685943085. The cubic root of 85454653 is about 440.4655076766.

The spelling of 85454653 in words is "eighty-five million, four hundred fifty-four thousand, six hundred fifty-three".