425509671 has 8 divisors (see below), whose sum is σ = 570516480. Its totient is φ = 282087992.

The previous prime is 425509631. The next prime is 425509673. The reversal of 425509671 is 176905524.

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 425509671 - 2⁶ = 425509607 is a prime.

It is a super-2 number, since 2×425509671² = 362116960229056482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425509673) 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, 395655 + ... + 396728.

It is an arithmetic number, because the mean of its divisors is an integer number (71314560).

Almost surely, 2^425509671 is an apocalyptic number.

425509671 is a deficient number, since it is larger than the sum of its proper divisors (145006809).

425509671 is a wasteful number, since it uses less digits than its factorization.

425509671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792565.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 425509671 is about 20627.8857617546. The cubic root of 425509671 is about 752.1477229552.

The spelling of 425509671 in words is "four hundred twenty-five million, five hundred nine thousand, six hundred seventy-one".