25216026890801 has 2 divisors, whose sum is σ = 25216026890802. Its totient is φ = 25216026890800.

The previous prime is 25216026890777. The next prime is 25216026890827. The reversal of 25216026890801 is 10809862061252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23057475312400 + 2158551578401 = 4801820^2 + 1469201^2 .

It is a cyclic number.

It is not a de Polignac number, because 25216026890801 - 2³⁰ = 25214953148977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25216026890801.

It is not a weakly prime, because it can be changed into another prime (25216026890891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12608013445400 + 12608013445401.

It is an arithmetic number, because the mean of its divisors is an integer number (12608013445401).

Almost surely, 2^{25216026890801} is an apocalyptic number.

It is an amenable number.

25216026890801 is a deficient number, since it is larger than the sum of its proper divisors (1).

25216026890801 is an equidigital number, since it uses as much as digits as its factorization.

25216026890801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 25216026890801 in words is "twenty-five trillion, two hundred sixteen billion, twenty-six million, eight hundred ninety thousand, eight hundred one".