85242653 has 4 divisors (see below), whose sum is σ = 87992448. Its totient is φ = 82492860.

The previous prime is 85242637. The next prime is 85242667. The reversal of 85242653 is 35624258.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35624258 = 2 ⋅17812129.

It is not a de Polignac number, because 85242653 - 2⁴ = 85242637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85272653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374851 + ... + 1374912.

It is an arithmetic number, because the mean of its divisors is an integer number (21998112).

Almost surely, 2^85242653 is an apocalyptic number.

It is an amenable number.

85242653 is a deficient number, since it is larger than the sum of its proper divisors (2749795).

85242653 is a wasteful number, since it uses less digits than its factorization.

85242653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749794.

The product of its digits is 57600, while the sum is 35.

The square root of 85242653 is about 9232.6947853809. The cubic root of 85242653 is about 440.1009634012.

The spelling of 85242653 in words is "eighty-five million, two hundred forty-two thousand, six hundred fifty-three".