25020435671201 has 2 divisors, whose sum is σ = 25020435671202. Its totient is φ = 25020435671200.

The previous prime is 25020435671173. The next prime is 25020435671207. The reversal of 25020435671201 is 10217653402052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23959997061025 + 1060438610176 = 4894895^2 + 1029776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25020435671201 is a prime.

It is not a weakly prime, because it can be changed into another prime (25020435671207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12510217835600 + 12510217835601.

It is an arithmetic number, because the mean of its divisors is an integer number (12510217835601).

Almost surely, 2^{25020435671201} is an apocalyptic number.

It is an amenable number.

25020435671201 is a deficient number, since it is larger than the sum of its proper divisors (1).

25020435671201 is an equidigital number, since it uses as much as digits as its factorization.

25020435671201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 25020435671201 in words is "twenty-five trillion, twenty billion, four hundred thirty-five million, six hundred seventy-one thousand, two hundred one".