85520365 has 8 divisors (see below), whose sum is σ = 117285120. Its totient is φ = 58642512.

The previous prime is 85520363. The next prime is 85520377. The reversal of 85520365 is 56302558.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85520365 - 2¹ = 85520363 is a prime.

It is a super-3 number, since 3×85520365³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85520365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85520363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221685 + ... + 1221754.

It is an arithmetic number, because the mean of its divisors is an integer number (14660640).

Almost surely, 2^85520365 is an apocalyptic number.

It is an amenable number.

85520365 is a deficient number, since it is larger than the sum of its proper divisors (31764755).

85520365 is a wasteful number, since it uses less digits than its factorization.

85520365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443451.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 85520365 is about 9247.7221519680. The cubic root of 85520365 is about 440.5783802260.

The spelling of 85520365 in words is "eighty-five million, five hundred twenty thousand, three hundred sixty-five".