25135637245097 has 2 divisors, whose sum is σ = 25135637245098. Its totient is φ = 25135637245096.

The previous prime is 25135637245001. The next prime is 25135637245163. The reversal of 25135637245097 is 79054273653152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19520234985241 + 5615402259856 = 4418171^2 + 2369684^2 .

It is a cyclic number.

It is not a de Polignac number, because 25135637245097 - 2¹⁰ = 25135637244073 is a prime.

It is not a weakly prime, because it can be changed into another prime (25135637241097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567818622548 + 12567818622549.

It is an arithmetic number, because the mean of its divisors is an integer number (12567818622549).

Almost surely, 2^{25135637245097} is an apocalyptic number.

It is an amenable number.

25135637245097 is a deficient number, since it is larger than the sum of its proper divisors (1).

25135637245097 is an equidigital number, since it uses as much as digits as its factorization.

25135637245097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628000, while the sum is 59.

The spelling of 25135637245097 in words is "twenty-five trillion, one hundred thirty-five billion, six hundred thirty-seven million, two hundred forty-five thousand, ninety-seven".