1606217325 has 24 divisors (see below), whose sum is σ = 2660954688. Its totient is φ = 854926080.

The previous prime is 1606217293. The next prime is 1606217359. The reversal of 1606217325 is 5237126061.

It is not a de Polignac number, because 1606217325 - 2⁵ = 1606217293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16437 + ... + 59013.

It is an arithmetic number, because the mean of its divisors is an integer number (110873112).

Almost surely, 2^1606217325 is an apocalyptic number.

1606217325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1606217325 is a deficient number, since it is larger than the sum of its proper divisors (1054737363).

1606217325 is a wasteful number, since it uses less digits than its factorization.

1606217325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43093 (or 43088 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1606217325 is about 40077.6412105303. The cubic root of 1606217325 is about 1171.1201012624.

The spelling of 1606217325 in words is "one billion, six hundred six million, two hundred seventeen thousand, three hundred twenty-five".