85729125 has 16 divisors (see below), whose sum is σ = 142653888. Its totient is φ = 45722000.

The previous prime is 85729109. The next prime is 85729139. The reversal of 85729125 is 52192758.

It is not a de Polignac number, because 85729125 - 2⁴ = 85729109 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113931 + ... + 114680.

It is an arithmetic number, because the mean of its divisors is an integer number (8915868).

Almost surely, 2^85729125 is an apocalyptic number.

It is an amenable number.

85729125 is a deficient number, since it is larger than the sum of its proper divisors (56924763).

85729125 is a wasteful number, since it uses less digits than its factorization.

85729125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228629 (or 228619 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 85729125 is about 9259.0023760662. The cubic root of 85729125 is about 440.9365810871.

The spelling of 85729125 in words is "eighty-five million, seven hundred twenty-nine thousand, one hundred twenty-five".