25205030535287 has 2 divisors, whose sum is σ = 25205030535288. Its totient is φ = 25205030535286.

The previous prime is 25205030535283. The next prime is 25205030535341. The reversal of 25205030535287 is 78253503050252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25205030535287 - 2² = 25205030535283 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25205030535283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12602515267643 + 12602515267644.

It is an arithmetic number, because the mean of its divisors is an integer number (12602515267644).

Almost surely, 2^{25205030535287} is an apocalyptic number.

25205030535287 is a deficient number, since it is larger than the sum of its proper divisors (1).

25205030535287 is an equidigital number, since it uses as much as digits as its factorization.

25205030535287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520000, while the sum is 47.

The spelling of 25205030535287 in words is "twenty-five trillion, two hundred five billion, thirty million, five hundred thirty-five thousand, two hundred eighty-seven".