85378525 has 12 divisors (see below), whose sum is σ = 106466400. Its totient is φ = 67917680.

The previous prime is 85378511. The next prime is 85378529. The reversal of 85378525 is 52587358.

It is not a de Polignac number, because 85378525 - 2⁵ = 85378493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85378529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5065 + ... + 14014.

It is an arithmetic number, because the mean of its divisors is an integer number (8872200).

Almost surely, 2^85378525 is an apocalyptic number.

It is an amenable number.

85378525 is a deficient number, since it is larger than the sum of its proper divisors (21087875).

85378525 is a wasteful number, since it uses less digits than its factorization.

85378525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19268 (or 19263 counting only the distinct ones).

The product of its digits is 336000, while the sum is 43.

The square root of 85378525 is about 9240.0500539770. The cubic root of 85378525 is about 440.3346713430.

The spelling of 85378525 in words is "eighty-five million, three hundred seventy-eight thousand, five hundred twenty-five".