125601066 has 24 divisors (see below), whose sum is σ = 288144324. Its totient is φ = 39404160.

The previous prime is 125601053. The next prime is 125601067. The reversal of 125601066 is 660106521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 124211025 + 1390041 = 11145^2 + 1179^2 .

It is not an unprimeable number, because it can be changed into a prime (125601067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204925 + ... + 205536.

Almost surely, 2^125601066 is an apocalyptic number.

125601066 is an abundant number, since it is smaller than the sum of its proper divisors (162543258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125601066 is a wasteful number, since it uses less digits than its factorization.

125601066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410486 (or 410483 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 125601066 is about 11207.1881397610. The cubic root of 125601066 is about 500.8001402016.

Adding to 125601066 its reverse (660106521), we get a palindrome (785707587).

The spelling of 125601066 in words is "one hundred twenty-five million, six hundred one thousand, sixty-six".