531520601 has 2 divisors, whose sum is σ = 531520602. Its totient is φ = 531520600.

The previous prime is 531520541. The next prime is 531520607. The reversal of 531520601 is 106025135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419266576 + 112254025 = 20476^2 + 10595^2 .

It is a cyclic number.

It is not a de Polignac number, because 531520601 - 2⁶ = 531520537 is a prime.

It is not a weakly prime, because it can be changed into another prime (531520607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265760300 + 265760301.

It is an arithmetic number, because the mean of its divisors is an integer number (265760301).

Almost surely, 2^531520601 is an apocalyptic number.

It is an amenable number.

531520601 is a deficient number, since it is larger than the sum of its proper divisors (1).

531520601 is an equidigital number, since it uses as much as digits as its factorization.

531520601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 531520601 is about 23054.7305557883. The cubic root of 531520601 is about 810.0404394788.

Adding to 531520601 its reverse (106025135), we get a palindrome (637545736).

The spelling of 531520601 in words is "five hundred thirty-one million, five hundred twenty thousand, six hundred one".