25027263109 has 2 divisors, whose sum is σ = 25027263110. Its totient is φ = 25027263108.

The previous prime is 25027263101. The next prime is 25027263119. The reversal of 25027263109 is 90136272052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24056940609 + 970322500 = 155103^2 + 31150^2 .

It is a cyclic number.

It is not a de Polignac number, because 25027263109 - 2³ = 25027263101 is a prime.

It is a super-2 number, since 2×25027263109² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25027263101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12513631554 + 12513631555.

It is an arithmetic number, because the mean of its divisors is an integer number (12513631555).

Almost surely, 2^25027263109 is an apocalyptic number.

It is an amenable number.

25027263109 is a deficient number, since it is larger than the sum of its proper divisors (1).

25027263109 is an equidigital number, since it uses as much as digits as its factorization.

25027263109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 25027263109 in words is "twenty-five billion, twenty-seven million, two hundred sixty-three thousand, one hundred nine".