25864529387 has 2 divisors, whose sum is σ = 25864529388. Its totient is φ = 25864529386.

The previous prime is 25864529381. The next prime is 25864529393. The reversal of 25864529387 is 78392546852.

It is a balanced prime because it is at equal distance from previous prime (25864529381) and next prime (25864529393).

It is a cyclic number.

It is not a de Polignac number, because 25864529387 - 2¹⁰ = 25864528363 is a prime.

It is not a weakly prime, because it can be changed into another prime (25864529381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12932264693 + 12932264694.

It is an arithmetic number, because the mean of its divisors is an integer number (12932264694).

Almost surely, 2^25864529387 is an apocalyptic number.

25864529387 is a deficient number, since it is larger than the sum of its proper divisors (1).

25864529387 is an equidigital number, since it uses as much as digits as its factorization.

25864529387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29030400, while the sum is 59.

The spelling of 25864529387 in words is "twenty-five billion, eight hundred sixty-four million, five hundred twenty-nine thousand, three hundred eighty-seven".