25066942387 has 2 divisors, whose sum is σ = 25066942388. Its totient is φ = 25066942386.

The previous prime is 25066942343. The next prime is 25066942477. The reversal of 25066942387 is 78324966052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25066942387 - 2¹⁵ = 25066909619 is a prime.

It is not a weakly prime, because it can be changed into another prime (25066942787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12533471193 + 12533471194.

It is an arithmetic number, because the mean of its divisors is an integer number (12533471194).

Almost surely, 2^25066942387 is an apocalyptic number.

25066942387 is a deficient number, since it is larger than the sum of its proper divisors (1).

25066942387 is an equidigital number, since it uses as much as digits as its factorization.

25066942387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 25066942387 in words is "twenty-five billion, sixty-six million, nine hundred forty-two thousand, three hundred eighty-seven".