85425541 has 4 divisors (see below), whose sum is σ = 85508800. Its totient is φ = 85342284.

The previous prime is 85425533. The next prime is 85425551. The reversal of 85425541 is 14552458.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 85425541 - 2³ = 85425533 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 85425497 and 85425506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85425521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40071 + ... + 42148.

It is an arithmetic number, because the mean of its divisors is an integer number (21377200).

Almost surely, 2^85425541 is an apocalyptic number.

It is an amenable number.

85425541 is a deficient number, since it is larger than the sum of its proper divisors (83259).

85425541 is a wasteful number, since it uses less digits than its factorization.

85425541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83258.

The product of its digits is 32000, while the sum is 34.

The square root of 85425541 is about 9242.5938458855. The cubic root of 85425541 is about 440.4154839201.

Adding to 85425541 its reverse (14552458), we get a palindrome (99977999).

The spelling of 85425541 in words is "eighty-five million, four hundred twenty-five thousand, five hundred forty-one".