75005285 has 4 divisors (see below), whose sum is σ = 90006348. Its totient is φ = 60004224.

The previous prime is 75005269. The next prime is 75005299. The reversal of 75005285 is 58250057.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58250057 = 647 ⋅90031.

It can be written as a sum of positive squares in 2 ways, for example, as 29833444 + 45171841 = 5462^2 + 6721^2 .

It is a cyclic number.

It is not a de Polignac number, because 75005285 - 2⁴ = 75005269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7500524 + ... + 7500533.

It is an arithmetic number, because the mean of its divisors is an integer number (22501587).

Almost surely, 2^75005285 is an apocalyptic number.

It is an amenable number.

75005285 is a deficient number, since it is larger than the sum of its proper divisors (15001063).

75005285 is a wasteful number, since it uses less digits than its factorization.

75005285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001062.

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 75005285 is about 8660.5591620865. The cubic root of 75005285 is about 421.7262380663.

The spelling of 75005285 in words is "seventy-five million, five thousand, two hundred eighty-five".