25005277524991 has 2 divisors, whose sum is σ = 25005277524992. Its totient is φ = 25005277524990.

The previous prime is 25005277524977. The next prime is 25005277525051. The reversal of 25005277524991 is 19942577250052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25005277524991 - 2²³ = 25005269136383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25005277524901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12502638762495 + 12502638762496.

It is an arithmetic number, because the mean of its divisors is an integer number (12502638762496).

Almost surely, 2^{25005277524991} is an apocalyptic number.

25005277524991 is a deficient number, since it is larger than the sum of its proper divisors (1).

25005277524991 is an equidigital number, since it uses as much as digits as its factorization.

25005277524991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876000, while the sum is 58.

The spelling of 25005277524991 in words is "twenty-five trillion, five billion, two hundred seventy-seven million, five hundred twenty-four thousand, nine hundred ninety-one".