25605700093 has 2 divisors, whose sum is σ = 25605700094. Its totient is φ = 25605700092.

The previous prime is 25605700091. The next prime is 25605700097. The reversal of 25605700093 is 39000750652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25324903044 + 280797049 = 159138^2 + 16757^2 .

It is a cyclic number.

It is not a de Polignac number, because 25605700093 - 2¹ = 25605700091 is a prime.

Together with 25605700091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25605700091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12802850046 + 12802850047.

It is an arithmetic number, because the mean of its divisors is an integer number (12802850047).

Almost surely, 2^25605700093 is an apocalyptic number.

It is an amenable number.

25605700093 is a deficient number, since it is larger than the sum of its proper divisors (1).

25605700093 is an equidigital number, since it uses as much as digits as its factorization.

25605700093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The spelling of 25605700093 in words is "twenty-five billion, six hundred five million, seven hundred thousand, ninety-three".