75228365 has 4 divisors (see below), whose sum is σ = 90274044. Its totient is φ = 60182688.

The previous prime is 75228347. The next prime is 75228403. The reversal of 75228365 is 56382257.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35450116 + 39778249 = 5954^2 + 6307^2 .

It is a cyclic number.

It is not a de Polignac number, because 75228365 - 2²⁴ = 58451149 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, 7522832 + ... + 7522841.

It is an arithmetic number, because the mean of its divisors is an integer number (22568511).

Almost surely, 2^75228365 is an apocalyptic number.

It is an amenable number.

75228365 is a deficient number, since it is larger than the sum of its proper divisors (15045679).

75228365 is a wasteful number, since it uses less digits than its factorization.

75228365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15045678.

The product of its digits is 100800, while the sum is 38.

The square root of 75228365 is about 8673.4286761349. The cubic root of 75228365 is about 422.1439222943.

The spelling of 75228365 in words is "seventy-five million, two hundred twenty-eight thousand, three hundred sixty-five".