25442045266 has 128 divisors (see below), whose sum is σ = 47325358080. Its totient is φ = 10108800000.

The previous prime is 25442045261. The next prime is 25442045281. The reversal of 25442045266 is 66254024452.

It is not an unprimeable number, because it can be changed into a prime (25442045261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140563696 + ... + 140563876.

It is an arithmetic number, because the mean of its divisors is an integer number (369729360).

Almost surely, 2^25442045266 is an apocalyptic number.

25442045266 is a deficient number, since it is larger than the sum of its proper divisors (21883312814).

25442045266 is a wasteful number, since it uses less digits than its factorization.

25442045266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 25442045266 in words is "twenty-five billion, four hundred forty-two million, forty-five thousand, two hundred sixty-six".