25387903147 has 2 divisors, whose sum is σ = 25387903148. Its totient is φ = 25387903146.

The previous prime is 25387903129. The next prime is 25387903199. The reversal of 25387903147 is 74130978352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25387903147 - 2²³ = 25379514539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25387903147.

It is not a weakly prime, because it can be changed into another prime (25387933147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12693951573 + 12693951574.

It is an arithmetic number, because the mean of its divisors is an integer number (12693951574).

Almost surely, 2^25387903147 is an apocalyptic number.

25387903147 is a deficient number, since it is larger than the sum of its proper divisors (1).

25387903147 is an equidigital number, since it uses as much as digits as its factorization.

25387903147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 25387903147 in words is "twenty-five billion, three hundred eighty-seven million, nine hundred three thousand, one hundred forty-seven".