125660257 has 8 divisors (see below), whose sum is σ = 128610720. Its totient is φ = 122744160.

The previous prime is 125660231. The next prime is 125660263. The reversal of 125660257 is 752066521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125660257 - 2¹¹ = 125658209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125660057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119 + ... + 15892.

It is an arithmetic number, because the mean of its divisors is an integer number (16076340).

Almost surely, 2^125660257 is an apocalyptic number.

It is an amenable number.

125660257 is a deficient number, since it is larger than the sum of its proper divisors (2950463).

125660257 is an equidigital number, since it uses as much as digits as its factorization.

125660257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17183.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 125660257 is about 11209.8285892336. The cubic root of 125660257 is about 500.8787971927.

The spelling of 125660257 in words is "one hundred twenty-five million, six hundred sixty thousand, two hundred fifty-seven".