581616952 has 16 divisors (see below), whose sum is σ = 1246322160. Its totient is φ = 249264384.

The previous prime is 581616929. The next prime is 581616967. The reversal of 581616952 is 259616185.

It is a junction number, because it is equal to n+sod(n) for n = 581616899 and 581616908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5192953 + ... + 5193064.

It is an arithmetic number, because the mean of its divisors is an integer number (77895135).

Almost surely, 2^581616952 is an apocalyptic number.

It is an amenable number.

581616952 is an abundant number, since it is smaller than the sum of its proper divisors (664705208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

581616952 is a wasteful number, since it uses less digits than its factorization.

581616952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10386030 (or 10386026 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The square root of 581616952 is about 24116.7359317135. The cubic root of 581616952 is about 834.7293525660.

The spelling of 581616952 in words is "five hundred eighty-one million, six hundred sixteen thousand, nine hundred fifty-two".