85425969 has 16 divisors (see below), whose sum is σ = 121056768. Its totient is φ = 53398272.

The previous prime is 85425961. The next prime is 85425973. The reversal of 85425969 is 96952458.

It is not a de Polignac number, because 85425969 - 2³ = 85425961 is a prime.

It is a super-2 number, since 2×85425969² = 14595192359177922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85425961) 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, 11104 + ... + 17150.

It is an arithmetic number, because the mean of its divisors is an integer number (7566048).

Almost surely, 2^85425969 is an apocalyptic number.

It is an amenable number.

85425969 is a deficient number, since it is larger than the sum of its proper divisors (35630799).

85425969 is a wasteful number, since it uses less digits than its factorization.

85425969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344.

The product of its digits is 777600, while the sum is 48.

The square root of 85425969 is about 9242.6169995299. The cubic root of 85425969 is about 440.4162194437.

The spelling of 85425969 in words is "eighty-five million, four hundred twenty-five thousand, nine hundred sixty-nine".