25670212 has 6 divisors (see below), whose sum is σ = 44922878. Its totient is φ = 12835104.

The previous prime is 25670171. The next prime is 25670243. The reversal of 25670212 is 21207652.

It can be written as a sum of positive squares in only one way, i.e., 18455616 + 7214596 = 4296^2 + 2686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3208773 + ... + 3208780.

Almost surely, 2^25670212 is an apocalyptic number.

It is an amenable number.

25670212 is a deficient number, since it is larger than the sum of its proper divisors (19252666).

25670212 is a wasteful number, since it uses less digits than its factorization.

25670212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417557 (or 6417555 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 25670212 is about 5066.5779378196. The cubic root of 25670212 is about 294.9917147917.

Adding to 25670212 its reverse (21207652), we get a palindrome (46877864).

The spelling of 25670212 in words is "twenty-five million, six hundred seventy thousand, two hundred twelve".