85816725 has 12 divisors (see below), whose sum is σ = 141883776. Its totient is φ = 45768880.

The previous prime is 85816723. The next prime is 85816733. The reversal of 85816725 is 52761858.

It is not a de Polignac number, because 85816725 - 2¹ = 85816723 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85816723) 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, 572037 + ... + 572186.

It is an arithmetic number, because the mean of its divisors is an integer number (11823648).

Almost surely, 2^85816725 is an apocalyptic number.

It is an amenable number.

85816725 is a deficient number, since it is larger than the sum of its proper divisors (56067051).

85816725 is a wasteful number, since it uses less digits than its factorization.

85816725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144236 (or 1144231 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 85816725 is about 9263.7316994827. The cubic root of 85816725 is about 441.0867163558.

The spelling of 85816725 in words is "eighty-five million, eight hundred sixteen thousand, seven hundred twenty-five".