25268666452 has 48 divisors (see below), whose sum is σ = 45348743440. Its totient is φ = 12317184000.

The previous prime is 25268666441. The next prime is 25268666459. The reversal of 25268666452 is 25466686252.

It can be written as a sum of positive squares in 8 ways, for example, as 4221620676 + 21047045776 = 64974^2 + 145076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25268666452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25268666459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7653202 + ... + 7656502.

Almost surely, 2^25268666452 is an apocalyptic number.

It is an amenable number.

25268666452 is a deficient number, since it is larger than the sum of its proper divisors (20080076988).

25268666452 is a wasteful number, since it uses less digits than its factorization.

25268666452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692 (or 3690 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 52.

The spelling of 25268666452 in words is "twenty-five billion, two hundred sixty-eight million, six hundred sixty-six thousand, four hundred fifty-two".