425251671 has 16 divisors (see below), whose sum is σ = 616551936. Its totient is φ = 259150176.

The previous prime is 425251667. The next prime is 425251681. The reversal of 425251671 is 176152524.

It is not a de Polignac number, because 425251671 - 2² = 425251667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425251661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48915 + ... + 56948.

It is an arithmetic number, because the mean of its divisors is an integer number (38534496).

Almost surely, 2^425251671 is an apocalyptic number.

425251671 is a deficient number, since it is larger than the sum of its proper divisors (191300265).

425251671 is a wasteful number, since it uses less digits than its factorization.

425251671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105982.

The product of its digits is 16800, while the sum is 33.

The square root of 425251671 is about 20621.6311430498. The cubic root of 425251671 is about 751.9956752194.

The spelling of 425251671 in words is "four hundred twenty-five million, two hundred fifty-one thousand, six hundred seventy-one".