85425851 has 16 divisors (see below), whose sum is σ = 102435840. Its totient is φ = 69689760.

The previous prime is 85425829. The next prime is 85425883. The reversal of 85425851 is 15852458.

It is not a de Polignac number, because 85425851 - 2⁶ = 85425787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85425551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11450 + ... + 17376.

It is an arithmetic number, because the mean of its divisors is an integer number (6402240).

Almost surely, 2^85425851 is an apocalyptic number.

85425851 is a deficient number, since it is larger than the sum of its proper divisors (17009989).

85425851 is a wasteful number, since it uses less digits than its factorization.

85425851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6034.

The product of its digits is 64000, while the sum is 38.

The square root of 85425851 is about 9242.6106160543. The cubic root of 85425851 is about 440.4160166594.

The spelling of 85425851 in words is "eighty-five million, four hundred twenty-five thousand, eight hundred fifty-one".