85342425 has 24 divisors (see below), whose sum is σ = 161257536. Its totient is φ = 39013440.

The previous prime is 85342391. The next prime is 85342427. The reversal of 85342425 is 52424358.

It is not a de Polignac number, because 85342425 - 2¹⁰ = 85341401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85342427) 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 23 ways as a sum of consecutive naturals, for example, 80754 + ... + 81803.

It is an arithmetic number, because the mean of its divisors is an integer number (6719064).

Almost surely, 2^85342425 is an apocalyptic number.

It is an amenable number.

85342425 is a deficient number, since it is larger than the sum of its proper divisors (75915111).

85342425 is a wasteful number, since it uses less digits than its factorization.

85342425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162577 (or 162572 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 85342425 is about 9238.0963948207. The cubic root of 85342425 is about 440.2726013921.

The spelling of 85342425 in words is "eighty-five million, three hundred forty-two thousand, four hundred twenty-five".