212043425 has 36 divisors (see below), whose sum is σ = 291314688. Its totient is φ = 152988000.

The previous prime is 212043383. The next prime is 212043427. The reversal of 212043425 is 524340212.

It is a happy number.

It is not a de Polignac number, because 212043425 - 2⁶ = 212043361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212043425.

It is not an unprimeable number, because it can be changed into a prime (212043427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 577592 + ... + 577958.

Almost surely, 2^212043425 is an apocalyptic number.

212043425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212043425 is a deficient number, since it is larger than the sum of its proper divisors (79271263).

212043425 is a wasteful number, since it uses less digits than its factorization.

212043425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 574 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 212043425 is about 14561.7109228277. The cubic root of 212043425 is about 596.3139055162.

Adding to 212043425 its reverse (524340212), we get a palindrome (736383637).

The spelling of 212043425 in words is "two hundred twelve million, forty-three thousand, four hundred twenty-five".