212425985 has 16 divisors (see below), whose sum is σ = 272012160. Its totient is φ = 158785920.

The previous prime is 212425949. The next prime is 212425987. The reversal of 212425985 is 589524212.

It is not a de Polignac number, because 212425985 - 2⁶ = 212425921 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (212425987) 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, 8381 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (17000760).

Almost surely, 2^212425985 is an apocalyptic number.

It is an amenable number.

212425985 is a deficient number, since it is larger than the sum of its proper divisors (59586175).

212425985 is a wasteful number, since it uses less digits than its factorization.

212425985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30728.

The product of its digits is 57600, while the sum is 38.

The square root of 212425985 is about 14574.8408224584. The cubic root of 212425985 is about 596.6723050489.

The spelling of 212425985 in words is "two hundred twelve million, four hundred twenty-five thousand, nine hundred eighty-five".