25442750747 has 2 divisors, whose sum is σ = 25442750748. Its totient is φ = 25442750746.

The previous prime is 25442750741. The next prime is 25442750771. The reversal of 25442750747 is 74705724452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25442750747 is a prime.

It is not a weakly prime, because it can be changed into another prime (25442750741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12721375373 + 12721375374.

It is an arithmetic number, because the mean of its divisors is an integer number (12721375374).

Almost surely, 2^25442750747 is an apocalyptic number.

25442750747 is a deficient number, since it is larger than the sum of its proper divisors (1).

25442750747 is an equidigital number, since it uses as much as digits as its factorization.

25442750747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2195200, while the sum is 47.

The spelling of 25442750747 in words is "twenty-five billion, four hundred forty-two million, seven hundred fifty thousand, seven hundred forty-seven".