425671085 has 12 divisors (see below), whose sum is σ = 594202428. Its totient is φ = 291888576.

The previous prime is 425671031. The next prime is 425671093. The reversal of 425671085 is 580176524.

It can be written as a sum of positive squares in 2 ways, for example, as 294843241 + 130827844 = 17171^2 + 11438^2 .

It is not a de Polignac number, because 425671085 - 2⁶ = 425671021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 868472 + ... + 868961.

It is an arithmetic number, because the mean of its divisors is an integer number (49516869).

Almost surely, 2^425671085 is an apocalyptic number.

It is an amenable number.

425671085 is a deficient number, since it is larger than the sum of its proper divisors (168531343).

425671085 is a wasteful number, since it uses less digits than its factorization.

425671085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737452 (or 1737445 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 425671085 is about 20631.7979100223. The cubic root of 425671085 is about 752.2428181884.

The spelling of 425671085 in words is "four hundred twenty-five million, six hundred seventy-one thousand, eighty-five".