25852554757 has 2 divisors, whose sum is σ = 25852554758. Its totient is φ = 25852554756.

The previous prime is 25852554743. The next prime is 25852554787. The reversal of 25852554757 is 75745525852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25497383041 + 355171716 = 159679^2 + 18846^2 .

It is a cyclic number.

It is not a de Polignac number, because 25852554757 - 2¹¹ = 25852552709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25852554698 and 25852554707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25852554787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12926277378 + 12926277379.

It is an arithmetic number, because the mean of its divisors is an integer number (12926277379).

Almost surely, 2^25852554757 is an apocalyptic number.

It is an amenable number.

25852554757 is a deficient number, since it is larger than the sum of its proper divisors (1).

25852554757 is an equidigital number, since it uses as much as digits as its factorization.

25852554757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19600000, while the sum is 55.

The spelling of 25852554757 in words is "twenty-five billion, eight hundred fifty-two million, five hundred fifty-four thousand, seven hundred fifty-seven".