75222817 has 8 divisors (see below), whose sum is σ = 77424480. Its totient is φ = 73052160.

The previous prime is 75222809. The next prime is 75222827. The reversal of 75222817 is 71822257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75222817 - 2³ = 75222809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75222827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2784 + ... + 12577.

It is an arithmetic number, because the mean of its divisors is an integer number (9678060).

Almost surely, 2^75222817 is an apocalyptic number.

It is an amenable number.

75222817 is a deficient number, since it is larger than the sum of its proper divisors (2201663).

75222817 is a wasteful number, since it uses less digits than its factorization.

75222817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15503.

The product of its digits is 15680, while the sum is 34.

The square root of 75222817 is about 8673.1088428544. The cubic root of 75222817 is about 422.1335445063.

The spelling of 75222817 in words is "seventy-five million, two hundred twenty-two thousand, eight hundred seventeen".