523055217 has 4 divisors (see below), whose sum is σ = 697406960. Its totient is φ = 348703476.

The previous prime is 523055209. The next prime is 523055227. The reversal of 523055217 is 712550325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 523055217 - 2³ = 523055209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523055207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87175867 + ... + 87175872.

It is an arithmetic number, because the mean of its divisors is an integer number (174351740).

Almost surely, 2^523055217 is an apocalyptic number.

It is an amenable number.

523055217 is a deficient number, since it is larger than the sum of its proper divisors (174351743).

523055217 is a wasteful number, since it uses less digits than its factorization.

523055217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174351742.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 523055217 is about 22870.4004556107. The cubic root of 523055217 is about 805.7169734698.

The spelling of 523055217 in words is "five hundred twenty-three million, fifty-five thousand, two hundred seventeen".