85220752 has 20 divisors (see below), whose sum is σ = 165258396. Its totient is φ = 42573440.

The previous prime is 85220749. The next prime is 85220753. The reversal of 85220752 is 25702258.

It can be written as a sum of positive squares in 2 ways, for example, as 24443136 + 60777616 = 4944^2 + 7796^2 .

It is not an unprimeable number, because it can be changed into a prime (85220753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34602 + ... + 36982.

Almost surely, 2^85220752 is an apocalyptic number.

It is an amenable number.

85220752 is a deficient number, since it is larger than the sum of its proper divisors (80037644).

85220752 is a wasteful number, since it uses less digits than its factorization.

85220752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626 (or 4620 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 85220752 is about 9231.5086524360. The cubic root of 85220752 is about 440.0632691388.

The spelling of 85220752 in words is "eighty-five million, two hundred twenty thousand, seven hundred fifty-two".