25106501089 has 2 divisors, whose sum is σ = 25106501090. Its totient is φ = 25106501088.

The previous prime is 25106501059. The next prime is 25106501107. The reversal of 25106501089 is 98010560152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16305246864 + 8801254225 = 127692^2 + 93815^2 .

It is a cyclic number.

It is not a de Polignac number, because 25106501089 - 2⁷ = 25106500961 is a prime.

It is a super-3 number, since 3×25106501089³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (25106501039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12553250544 + 12553250545.

It is an arithmetic number, because the mean of its divisors is an integer number (12553250545).

Almost surely, 2^25106501089 is an apocalyptic number.

It is an amenable number.

25106501089 is a deficient number, since it is larger than the sum of its proper divisors (1).

25106501089 is an equidigital number, since it uses as much as digits as its factorization.

25106501089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 25106501089 in words is "twenty-five billion, one hundred six million, five hundred one thousand, eighty-nine".