75500064 has 36 divisors (see below), whose sum is σ = 214704126. Its totient is φ = 25166592.

The previous prime is 75500059. The next prime is 75500069. The reversal of 75500064 is 46000557.

It is an interprime number because it is at equal distance from previous prime (75500059) and next prime (75500069).

It can be written as a sum of positive squares in only one way, i.e., 38192400 + 37307664 = 6180^2 + 6108^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (75500069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130789 + ... + 131364.

Almost surely, 2^75500064 is an apocalyptic number.

It is an amenable number.

75500064 is an abundant number, since it is smaller than the sum of its proper divisors (139204062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75500064 is a wasteful number, since it uses less digits than its factorization.

75500064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262169 (or 262158 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 75500064 is about 8689.0772812768. The cubic root of 75500064 is about 422.6515246107.

The spelling of 75500064 in words is "seventy-five million, five hundred thousand, sixty-four".