125757257 has 8 divisors (see below), whose sum is σ = 132686400. Its totient is φ = 118859184.

The previous prime is 125757251. The next prime is 125757263. The reversal of 125757257 is 752757521.

It is an interprime number because it is at equal distance from previous prime (125757251) and next prime (125757263).

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 125757257 - 2⁶ = 125757193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125757251) 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, 803 + ... + 15879.

It is an arithmetic number, because the mean of its divisors is an integer number (16585800).

Almost surely, 2^125757257 is an apocalyptic number.

It is an amenable number.

125757257 is a deficient number, since it is larger than the sum of its proper divisors (6929143).

125757257 is a wasteful number, since it uses less digits than its factorization.

125757257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15535.

The product of its digits is 171500, while the sum is 41.

The square root of 125757257 is about 11214.1543149718. The cubic root of 125757257 is about 501.0076439432.

The spelling of 125757257 in words is "one hundred twenty-five million, seven hundred fifty-seven thousand, two hundred fifty-seven".