213004025 has 24 divisors (see below), whose sum is σ = 285815040. Its totient is φ = 156536640.

The previous prime is 213003997. The next prime is 213004031. The reversal of 213004025 is 520400312.

It is not a de Polignac number, because 213004025 - 2⁶ = 213003961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213003994 and 213004012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71006 + ... + 73944.

It is an arithmetic number, because the mean of its divisors is an integer number (11908960).

Almost surely, 2^213004025 is an apocalyptic number.

213004025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213004025 is a deficient number, since it is larger than the sum of its proper divisors (72811015).

213004025 is a wasteful number, since it uses less digits than its factorization.

213004025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185 (or 3180 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 213004025 is about 14594.6574129028. The cubic root of 213004025 is about 597.2130237231.

Adding to 213004025 its reverse (520400312), we get a palindrome (733404337).

The spelling of 213004025 in words is "two hundred thirteen million, four thousand, twenty-five".