75222369 has 24 divisors (see below), whose sum is σ = 112068840. Its totient is φ = 48584448.

The previous prime is 75222281. The next prime is 75222373. The reversal of 75222369 is 96322257.

75222369 is a `hidden beast` number, since 75 + 222 + 369 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18792225 + 56430144 = 4335^2 + 7512^2 .

It is not a de Polignac number, because 75222369 - 2⁹ = 75221857 is a prime.

It is a super-2 number, since 2×75222369² = 11316809595944322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75222379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131917 + ... + 132485.

It is an arithmetic number, because the mean of its divisors is an integer number (4669535).

Almost surely, 2^75222369 is an apocalyptic number.

It is an amenable number.

75222369 is a deficient number, since it is larger than the sum of its proper divisors (36846471).

75222369 is a wasteful number, since it uses less digits than its factorization.

75222369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1006 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 75222369 is about 8673.0830158600. The cubic root of 75222369 is about 422.1327064796.

The spelling of 75222369 in words is "seventy-five million, two hundred twenty-two thousand, three hundred sixty-nine".