85125778 has 8 divisors (see below), whose sum is σ = 129594672. Its totient is φ = 41927556.

The previous prime is 85125773. The next prime is 85125787. The reversal of 85125778 is 87752158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (85125773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317500 + ... + 317767.

It is an arithmetic number, because the mean of its divisors is an integer number (16199334).

Almost surely, 2^85125778 is an apocalyptic number.

85125778 is a deficient number, since it is larger than the sum of its proper divisors (44468894).

85125778 is a wasteful number, since it uses less digits than its factorization.

85125778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635336.

The product of its digits is 156800, while the sum is 43.

The square root of 85125778 is about 9226.3632055106. The cubic root of 85125778 is about 439.8997326624.

The spelling of 85125778 in words is "eighty-five million, one hundred twenty-five thousand, seven hundred seventy-eight".