12500657 has 8 divisors (see below), whose sum is σ = 13896960. Its totient is φ = 11166480.

The previous prime is 12500647. The next prime is 12500693. The reversal of 12500657 is 75600521.

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

It is not a de Polignac number, because 12500657 - 2¹⁶ = 12435121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12500617) 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, 15107 + ... + 15912.

It is an arithmetic number, because the mean of its divisors is an integer number (1737120).

Almost surely, 2^12500657 is an apocalyptic number.

It is an amenable number.

12500657 is a deficient number, since it is larger than the sum of its proper divisors (1396303).

12500657 is a wasteful number, since it uses less digits than its factorization.

12500657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31063.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 12500657 is about 3535.6268185429. The cubic root of 12500657 is about 232.0835076412.

The spelling of 12500657 in words is "twelve million, five hundred thousand, six hundred fifty-seven".