75020065 has 24 divisors (see below), whose sum is σ = 96483960. Its totient is φ = 55984128.

The previous prime is 75020051. The next prime is 75020083. The reversal of 75020065 is 56002057.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 21613201 + 53406864 = 4649^2 + 7308^2 .

It is not a de Polignac number, because 75020065 - 2¹¹ = 75018017 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 278751 + ... + 279019.

It is an arithmetic number, because the mean of its divisors is an integer number (4020165).

Almost surely, 2^75020065 is an apocalyptic number.

It is an amenable number.

75020065 is a deficient number, since it is larger than the sum of its proper divisors (21463895).

75020065 is a wasteful number, since it uses less digits than its factorization.

75020065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 75020065 is about 8661.4124136887. The cubic root of 75020065 is about 421.7539370230.

The spelling of 75020065 in words is "seventy-five million, twenty thousand, sixty-five".