25622456212 has 6 divisors (see below), whose sum is σ = 44839298378. Its totient is φ = 12811228104.

The previous prime is 25622456207. The next prime is 25622456227. The reversal of 25622456212 is 21265422652.

It can be written as a sum of positive squares in only one way, i.e., 14026612356 + 11595843856 = 118434^2 + 107684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202807023 + ... + 3202807030.

Almost surely, 2^25622456212 is an apocalyptic number.

It is an amenable number.

25622456212 is a deficient number, since it is larger than the sum of its proper divisors (19216842166).

25622456212 is a wasteful number, since it uses less digits than its factorization.

25622456212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405614057 (or 6405614055 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

Adding to 25622456212 its reverse (21265422652), we get a palindrome (46887878864).

The spelling of 25622456212 in words is "twenty-five billion, six hundred twenty-two million, four hundred fifty-six thousand, two hundred twelve".