85142925 has 36 divisors (see below), whose sum is σ = 174289440. Its totient is φ = 38921760.

The previous prime is 85142903. The next prime is 85142929. The reversal of 85142925 is 52924158.

It is not a de Polignac number, because 85142925 - 2⁸ = 85142669 is a prime.

It is a super-3 number, since 3×85142925³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85142925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85142929) 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 35 ways as a sum of consecutive naturals, for example, 25455 + ... + 28604.

Almost surely, 2^85142925 is an apocalyptic number.

It is an amenable number.

85142925 is an abundant number, since it is smaller than the sum of its proper divisors (89146515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85142925 is a wasteful number, since it uses less digits than its factorization.

85142925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54082 (or 54074 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 85142925 is about 9227.2923980982. The cubic root of 85142925 is about 439.9292672111.

The spelling of 85142925 in words is "eighty-five million, one hundred forty-two thousand, nine hundred twenty-five".