25730212 has 12 divisors (see below), whose sum is σ = 45074736. Its totient is φ = 12851720.

The previous prime is 25730209. The next prime is 25730219. The reversal of 25730212 is 21203752.

It is not an unprimeable number, because it can be changed into a prime (25730219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1887 + ... + 7417.

It is an arithmetic number, because the mean of its divisors is an integer number (3756228).

Almost surely, 2^25730212 is an apocalyptic number.

It is an amenable number.

25730212 is a deficient number, since it is larger than the sum of its proper divisors (19344524).

25730212 is a wasteful number, since it uses less digits than its factorization.

25730212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698 (or 6696 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 25730212 is about 5072.4956382436. The cubic root of 25730212 is about 295.2213678860.

Adding to 25730212 its reverse (21203752), we get a palindrome (46933964).

The spelling of 25730212 in words is "twenty-five million, seven hundred thirty thousand, two hundred twelve".