85660025 has 48 divisors (see below), whose sum is σ = 124867008. Its totient is φ = 57600000.

The previous prime is 85660013. The next prime is 85660033. The reversal of 85660025 is 52006658.

It is a happy number.

It is not a de Polignac number, because 85660025 - 2¹⁰ = 85659001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85659973 and 85660000.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 341150 + ... + 341400.

It is an arithmetic number, because the mean of its divisors is an integer number (2601396).

Almost surely, 2^85660025 is an apocalyptic number.

85660025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85660025 is a deficient number, since it is larger than the sum of its proper divisors (39206983).

85660025 is a wasteful number, since it uses less digits than its factorization.

85660025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 85660025 is about 9255.2701203152. The cubic root of 85660025 is about 440.8180802951.

The spelling of 85660025 in words is "eighty-five million, six hundred sixty thousand, twenty-five".