125556201 has 12 divisors (see below), whose sum is σ = 183655680. Its totient is φ = 82644120.

The previous prime is 125556157. The next prime is 125556217. The reversal of 125556201 is 102655521.

It is not a de Polignac number, because 125556201 - 2²³ = 117167593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125556251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87585 + ... + 89006.

It is an arithmetic number, because the mean of its divisors is an integer number (15304640).

Almost surely, 2^125556201 is an apocalyptic number.

It is an amenable number.

125556201 is a deficient number, since it is larger than the sum of its proper divisors (58099479).

125556201 is a wasteful number, since it uses less digits than its factorization.

125556201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176676 (or 176673 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 125556201 is about 11205.1863438320. The cubic root of 125556201 is about 500.7405040993.

The spelling of 125556201 in words is "one hundred twenty-five million, five hundred fifty-six thousand, two hundred one".