531025919 has 2 divisors, whose sum is σ = 531025920. Its totient is φ = 531025918.

The previous prime is 531025903. The next prime is 531025951. The reversal of 531025919 is 919520135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531025919 - 2⁴ = 531025903 is a prime.

It is a super-2 number, since 2×531025919² = 563977053299589122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531025519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265512959 + 265512960.

It is an arithmetic number, because the mean of its divisors is an integer number (265512960).

Almost surely, 2^531025919 is an apocalyptic number.

531025919 is a deficient number, since it is larger than the sum of its proper divisors (1).

531025919 is an equidigital number, since it uses as much as digits as its factorization.

531025919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 531025919 is about 23043.9996311404. Note that the first 3 decimals coincide. The cubic root of 531025919 is about 809.7890620774.

The spelling of 531025919 in words is "five hundred thirty-one million, twenty-five thousand, nine hundred nineteen".