531532273 has 2 divisors, whose sum is σ = 531532274. Its totient is φ = 531532272.

The previous prime is 531532219. The next prime is 531532279. The reversal of 531532273 is 372235135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 528632064 + 2900209 = 22992^2 + 1703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531532273 is a prime.

It is not a weakly prime, because it can be changed into another prime (531532279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265766136 + 265766137.

It is an arithmetic number, because the mean of its divisors is an integer number (265766137).

Almost surely, 2^531532273 is an apocalyptic number.

It is an amenable number.

531532273 is a deficient number, since it is larger than the sum of its proper divisors (1).

531532273 is an equidigital number, since it uses as much as digits as its factorization.

531532273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 31.

The square root of 531532273 is about 23054.9836911675. The cubic root of 531532273 is about 810.0463688336.

The spelling of 531532273 in words is "five hundred thirty-one million, five hundred thirty-two thousand, two hundred seventy-three".