581671325 has 6 divisors (see below), whose sum is σ = 721272474. Its totient is φ = 465337040.

The previous prime is 581671319. The next prime is 581671351. The reversal of 581671325 is 523176185.

It can be written as a sum of positive squares in 3 ways, for example, as 1295044 + 580376281 = 1138^2 + 24091^2 .

It is not a de Polignac number, because 581671325 - 2⁶ = 581671261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11633402 + ... + 11633451.

It is an arithmetic number, because the mean of its divisors is an integer number (120212079).

Almost surely, 2^581671325 is an apocalyptic number.

It is an amenable number.

581671325 is a deficient number, since it is larger than the sum of its proper divisors (139601149).

581671325 is a wasteful number, since it uses less digits than its factorization.

581671325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23266863 (or 23266858 counting only the distinct ones).

The product of its digits is 50400, while the sum is 38.

The square root of 581671325 is about 24117.8631930774. The cubic root of 581671325 is about 834.7553635713.

The spelling of 581671325 in words is "five hundred eighty-one million, six hundred seventy-one thousand, three hundred twenty-five".