25097297099807 has 2 divisors, whose sum is σ = 25097297099808. Its totient is φ = 25097297099806.

The previous prime is 25097297099761. The next prime is 25097297099951. The reversal of 25097297099807 is 70899079279052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25097297099807 - 2⁴² = 20699250588703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25097227099807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12548648549903 + 12548648549904.

It is an arithmetic number, because the mean of its divisors is an integer number (12548648549904).

Almost surely, 2^{25097297099807} is an apocalyptic number.

25097297099807 is a deficient number, since it is larger than the sum of its proper divisors (1).

25097297099807 is an equidigital number, since it uses as much as digits as its factorization.

25097297099807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360067680, while the sum is 74.

The spelling of 25097297099807 in words is "twenty-five trillion, ninety-seven billion, two hundred ninety-seven million, ninety-nine thousand, eight hundred seven".