531889449 has 16 divisors (see below), whose sum is σ = 872844672. Its totient is φ = 280556928.

The previous prime is 531889447. The next prime is 531889451. The reversal of 531889449 is 944988135.

It is an interprime number because it is at equal distance from previous prime (531889447) and next prime (531889451).

It is not a de Polignac number, because 531889449 - 2¹ = 531889447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531889447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 973884 + ... + 974429.

It is an arithmetic number, because the mean of its divisors is an integer number (54552792).

Almost surely, 2^531889449 is an apocalyptic number.

It is an amenable number.

531889449 is a deficient number, since it is larger than the sum of its proper divisors (340955223).

531889449 is a wasteful number, since it uses less digits than its factorization.

531889449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948336.

The product of its digits is 1244160, while the sum is 51.

The square root of 531889449 is about 23062.7285679730. The cubic root of 531889449 is about 810.2277716405.

The spelling of 531889449 in words is "five hundred thirty-one million, eight hundred eighty-nine thousand, four hundred forty-nine".