3125257667 has 8 divisors (see below), whose sum is σ = 3585305856. Its totient is φ = 2668605192.

The previous prime is 3125257661. The next prime is 3125257691. The reversal of 3125257667 is 7667525213.

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 3125257667 - 2²⁰ = 3124209091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125257661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846953 + ... + 850634.

It is an arithmetic number, because the mean of its divisors is an integer number (448163232).

Almost surely, 2^3125257667 is an apocalyptic number.

3125257667 is a deficient number, since it is larger than the sum of its proper divisors (460048189).

3125257667 is a wasteful number, since it uses less digits than its factorization.

3125257667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697857.

The product of its digits is 529200, while the sum is 44.

The square root of 3125257667 is about 55904.0040337005. The cubic root of 3125257667 is about 1462.0490505556.

The spelling of 3125257667 in words is "three billion, one hundred twenty-five million, two hundred fifty-seven thousand, six hundred sixty-seven".