75223017 has 12 divisors (see below), whose sum is σ = 108919044. Its totient is φ = 50027040.

The previous prime is 75222967. The next prime is 75223021. The reversal of 75223017 is 71032257.

It can be written as a sum of positive squares in 2 ways, for example, as 4309776 + 70913241 = 2076^2 + 8421^2 .

It is not a de Polignac number, because 75223017 - 2²³ = 66834409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75223117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6138 + ... + 13715.

It is an arithmetic number, because the mean of its divisors is an integer number (9076587).

Almost surely, 2^75223017 is an apocalyptic number.

It is an amenable number.

75223017 is a deficient number, since it is larger than the sum of its proper divisors (33696027).

75223017 is a wasteful number, since it uses less digits than its factorization.

75223017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20280 (or 20277 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 75223017 is about 8673.1203727378. The cubic root of 75223017 is about 422.1339186244.

The spelling of 75223017 in words is "seventy-five million, two hundred twenty-three thousand, seventeen".