425216085 has 64 divisors (see below), whose sum is σ = 800616960. Its totient is φ = 188697600.

The previous prime is 425216047. The next prime is 425216093. The reversal of 425216085 is 580612524.

It is not a de Polignac number, because 425216085 - 2⁸ = 425215829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 606235 + ... + 606935.

It is an arithmetic number, because the mean of its divisors is an integer number (12509640).

Almost surely, 2^425216085 is an apocalyptic number.

It is an amenable number.

425216085 is a deficient number, since it is larger than the sum of its proper divisors (375400875).

425216085 is a wasteful number, since it uses less digits than its factorization.

425216085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 425216085 is about 20620.7682931553. The cubic root of 425216085 is about 751.9746984140.

The spelling of 425216085 in words is "four hundred twenty-five million, two hundred sixteen thousand, eighty-five".