25713210 has 16 divisors (see below), whose sum is σ = 61711776. Its totient is φ = 6856848.

The previous prime is 25713161. The next prime is 25713211. The reversal of 25713210 is 1231752.

It is a super-2 number, since 2×25713210² = 1322338337008200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25713211) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 428524 + ... + 428583.

It is an arithmetic number, because the mean of its divisors is an integer number (3856986).

Almost surely, 2^25713210 is an apocalyptic number.

25713210 is an abundant number, since it is smaller than the sum of its proper divisors (35998566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25713210 is a wasteful number, since it uses less digits than its factorization.

25713210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857117.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 25713210 is about 5070.8194604028. The cubic root of 25713210 is about 295.1563281361.

Adding to 25713210 its reverse (1231752), we get a palindrome (26944962).

The spelling of 25713210 in words is "twenty-five million, seven hundred thirteen thousand, two hundred ten".