533981249 has 2 divisors, whose sum is σ = 533981250. Its totient is φ = 533981248.

The previous prime is 533981219. The next prime is 533981257. The reversal of 533981249 is 942189335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 470890000 + 63091249 = 21700^2 + 7943^2 .

It is a cyclic number.

It is not a de Polignac number, because 533981249 - 2²⁴ = 517204033 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (533981219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266990624 + 266990625.

It is an arithmetic number, because the mean of its divisors is an integer number (266990625).

Almost surely, 2^533981249 is an apocalyptic number.

It is an amenable number.

533981249 is a deficient number, since it is larger than the sum of its proper divisors (1).

533981249 is an equidigital number, since it uses as much as digits as its factorization.

533981249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 533981249 is about 23108.0342954566. The cubic root of 533981249 is about 811.2885293464.

The spelling of 533981249 in words is "five hundred thirty-three million, nine hundred eighty-one thousand, two hundred forty-nine".