530919905 has 8 divisors (see below), whose sum is σ = 647548584. Its totient is φ = 417772800.

The previous prime is 530919889. The next prime is 530919931. The reversal of 530919905 is 509919035.

It can be written as a sum of positive squares in 4 ways, for example, as 16900321 + 514019584 = 4111^2 + 22672^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 530919905 - 2⁴ = 530919889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 870056 + ... + 870665.

It is an arithmetic number, because the mean of its divisors is an integer number (80943573).

Almost surely, 2^530919905 is an apocalyptic number.

It is an amenable number.

530919905 is a deficient number, since it is larger than the sum of its proper divisors (116628679).

530919905 is a wasteful number, since it uses less digits than its factorization.

530919905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740787.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 530919905 is about 23041.6992645942. The cubic root of 530919905 is about 809.7351697355.

The spelling of 530919905 in words is "five hundred thirty million, nine hundred nineteen thousand, nine hundred five".