425957665 has 8 divisors (see below), whose sum is σ = 584170560. Its totient is φ = 292085232.

The previous prime is 425957657. The next prime is 425957669. The reversal of 425957665 is 566759524.

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 425957665 - 2³ = 425957657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (425957669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6085075 + ... + 6085144.

It is an arithmetic number, because the mean of its divisors is an integer number (73021320).

Almost surely, 2^425957665 is an apocalyptic number.

It is an amenable number.

425957665 is a deficient number, since it is larger than the sum of its proper divisors (158212895).

425957665 is a wasteful number, since it uses less digits than its factorization.

425957665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12170231.

The product of its digits is 2268000, while the sum is 49.

The square root of 425957665 is about 20638.7418463433. The cubic root of 425957665 is about 752.4115943427.

The spelling of 425957665 in words is "four hundred twenty-five million, nine hundred fifty-seven thousand, six hundred sixty-five".