1671305325 has 24 divisors (see below), whose sum is σ = 2852365056. Its totient is φ = 862608000.

The previous prime is 1671305323. The next prime is 1671305329. The reversal of 1671305325 is 5235031761.

It is not a de Polignac number, because 1671305325 - 2¹ = 1671305323 is a prime.

It is a super-2 number, since 2×1671305325² = 5586522978746711250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671305323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 357096 + ... + 361745.

It is an arithmetic number, because the mean of its divisors is an integer number (118848544).

Almost surely, 2^1671305325 is an apocalyptic number.

1671305325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1671305325 is a deficient number, since it is larger than the sum of its proper divisors (1181059731).

1671305325 is a wasteful number, since it uses less digits than its factorization.

1671305325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718885 (or 718880 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 1671305325 is about 40881.6013018081. The cubic root of 1671305325 is about 1186.7300301333.

The spelling of 1671305325 in words is "one billion, six hundred seventy-one million, three hundred five thousand, three hundred twenty-five".