212423025 has 24 divisors (see below), whose sum is σ = 353550784. Its totient is φ = 112536000.

The previous prime is 212423023. The next prime is 212423027. The reversal of 212423025 is 520324212.

It is an interprime number because it is at equal distance from previous prime (212423023) and next prime (212423027).

It is not a de Polignac number, because 212423025 - 2¹ = 212423023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212422992 and 212423010.

It is not an unprimeable number, because it can be changed into a prime (212423023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1947 + ... + 20703.

Almost surely, 2^212423025 is an apocalyptic number.

212423025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212423025 is a deficient number, since it is larger than the sum of its proper divisors (141127759).

212423025 is a wasteful number, since it uses less digits than its factorization.

212423025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18921 (or 18916 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 212423025 is about 14574.7392772564. The cubic root of 212423025 is about 596.6695336393.

Adding to 212423025 its reverse (520324212), we get a palindrome (732747237).

The spelling of 212423025 in words is "two hundred twelve million, four hundred twenty-three thousand, twenty-five".