531825407 has 2 divisors, whose sum is σ = 531825408. Its totient is φ = 531825406.

The previous prime is 531825379. The next prime is 531825443. The reversal of 531825407 is 704528135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531825407 - 2¹⁶ = 531759871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531855407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265912703 + 265912704.

It is an arithmetic number, because the mean of its divisors is an integer number (265912704).

Almost surely, 2^531825407 is an apocalyptic number.

531825407 is a deficient number, since it is larger than the sum of its proper divisors (1).

531825407 is an equidigital number, since it uses as much as digits as its factorization.

531825407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 531825407 is about 23061.3400954931. The cubic root of 531825407 is about 810.1952519194.

The spelling of 531825407 in words is "five hundred thirty-one million, eight hundred twenty-five thousand, four hundred seven".