4575521 has 2 divisors, whose sum is σ = 4575522. Its totient is φ = 4575520.

The previous prime is 4575517. The next prime is 4575539. The reversal of 4575521 is 1255754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4363921 + 211600 = 2089^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 4575521 - 2² = 4575517 is a prime.

It is not a weakly prime, because it can be changed into another prime (4575581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2287760 + 2287761.

It is an arithmetic number, because the mean of its divisors is an integer number (2287761).

Almost surely, 2^4575521 is an apocalyptic number.

It is an amenable number.

4575521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4575521 is an equidigital number, since it uses as much as digits as its factorization.

4575521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7000, while the sum is 29.

The square root of 4575521 is about 2139.0467503072. The cubic root of 4575521 is about 166.0148169868.

The spelling of 4575521 in words is "four million, five hundred seventy-five thousand, five hundred twenty-one".