25847275061 has 2 divisors, whose sum is σ = 25847275062. Its totient is φ = 25847275060.

The previous prime is 25847275021. The next prime is 25847275123. The reversal of 25847275061 is 16057274852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19121634961 + 6725640100 = 138281^2 + 82010^2 .

It is a cyclic number.

It is not a de Polignac number, because 25847275061 - 2²⁶ = 25780166197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25847274997 and 25847275015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25847275021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12923637530 + 12923637531.

It is an arithmetic number, because the mean of its divisors is an integer number (12923637531).

Almost surely, 2^25847275061 is an apocalyptic number.

It is an amenable number.

25847275061 is a deficient number, since it is larger than the sum of its proper divisors (1).

25847275061 is an equidigital number, since it uses as much as digits as its factorization.

25847275061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 25847275061 in words is "twenty-five billion, eight hundred forty-seven million, two hundred seventy-five thousand, sixty-one".