25642056053 has 2 divisors, whose sum is σ = 25642056054. Its totient is φ = 25642056052.

The previous prime is 25642055987. The next prime is 25642056071. The reversal of 25642056053 is 35065024652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14179570084 + 11462485969 = 119078^2 + 107063^2 .

It is a cyclic number.

It is not a de Polignac number, because 25642056053 - 2¹⁰ = 25642055029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25642055998 and 25642056016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25642056073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12821028026 + 12821028027.

It is an arithmetic number, because the mean of its divisors is an integer number (12821028027).

Almost surely, 2^25642056053 is an apocalyptic number.

It is an amenable number.

25642056053 is a deficient number, since it is larger than the sum of its proper divisors (1).

25642056053 is an equidigital number, since it uses as much as digits as its factorization.

25642056053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 25642056053 in words is "twenty-five billion, six hundred forty-two million, fifty-six thousand, fifty-three".