125265289 has 4 divisors (see below), whose sum is σ = 125323524. Its totient is φ = 125207056.

The previous prime is 125265281. The next prime is 125265311. The reversal of 125265289 is 982562521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76265289 + 49000000 = 8733^2 + 7000^2 .

It is a cyclic number.

It is not a de Polignac number, because 125265289 - 2³ = 125265281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125265281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25762 + ... + 30235.

It is an arithmetic number, because the mean of its divisors is an integer number (31330881).

Almost surely, 2^125265289 is an apocalyptic number.

It is an amenable number.

125265289 is a deficient number, since it is larger than the sum of its proper divisors (58235).

125265289 is an equidigital number, since it uses as much as digits as its factorization.

125265289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58234.

The product of its digits is 86400, while the sum is 40.

The square root of 125265289 is about 11192.1976841012. The cubic root of 125265289 is about 500.3534687275.

The spelling of 125265289 in words is "one hundred twenty-five million, two hundred sixty-five thousand, two hundred eighty-nine".