25616026212 has 48 divisors (see below), whose sum is σ = 68382206592. Its totient is φ = 7311064320.

The previous prime is 25616026193. The next prime is 25616026213. The reversal of 25616026212 is 21262061652.

It is not an unprimeable number, because it can be changed into a prime (25616026213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82993 + ... + 241080.

It is an arithmetic number, because the mean of its divisors is an integer number (1424629304).

Almost surely, 2^25616026212 is an apocalyptic number.

It is an amenable number.

25616026212 is an abundant number, since it is smaller than the sum of its proper divisors (42766180380).

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

25616026212 is a wasteful number, since it uses less digits than its factorization.

25616026212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325028 (or 325026 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 25616026212 its reverse (21262061652), we get a palindrome (46878087864).

The spelling of 25616026212 in words is "twenty-five billion, six hundred sixteen million, twenty-six thousand, two hundred twelve".