85527765 has 64 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 42319872.

The previous prime is 85527737. The next prime is 85527809. The reversal of 85527765 is 56772558.

It is not a de Polignac number, because 85527765 - 2¹¹ = 85525717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 85527765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190261 + ... + 190709.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 2^85527765 is an apocalyptic number.

85527765 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85527765 is a deficient number, since it is larger than the sum of its proper divisors (77768235).

85527765 is a wasteful number, since it uses less digits than its factorization.

85527765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 557 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 85527765 is about 9248.1222418392. The cubic root of 85527765 is about 440.5910874760.

The spelling of 85527765 in words is "eighty-five million, five hundred twenty-seven thousand, seven hundred sixty-five".