166427525 has 12 divisors (see below), whose sum is σ = 225131424. Its totient is φ = 121038000.

The previous prime is 166427461. The next prime is 166427537. The reversal of 166427525 is 525724661.

It is not a de Polignac number, because 166427525 - 2⁶ = 166427461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302321 + ... + 302870.

It is an arithmetic number, because the mean of its divisors is an integer number (18760952).

Almost surely, 2^166427525 is an apocalyptic number.

It is an amenable number.

166427525 is a deficient number, since it is larger than the sum of its proper divisors (58703899).

166427525 is a wasteful number, since it uses less digits than its factorization.

166427525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605212 (or 605207 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 166427525 is about 12900.6792456832. The cubic root of 166427525 is about 550.0578726981.

The spelling of 166427525 in words is "one hundred sixty-six million, four hundred twenty-seven thousand, five hundred twenty-five".