25488937757 has 2 divisors, whose sum is σ = 25488937758. Its totient is φ = 25488937756.

The previous prime is 25488937739. The next prime is 25488937829. The reversal of 25488937757 is 75773988452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18862000921 + 6626936836 = 137339^2 + 81406^2 .

It is a cyclic number.

It is not a de Polignac number, because 25488937757 - 2¹⁴ = 25488921373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25488937693 and 25488937702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25488937457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12744468878 + 12744468879.

It is an arithmetic number, because the mean of its divisors is an integer number (12744468879).

Almost surely, 2^25488937757 is an apocalyptic number.

It is an amenable number.

25488937757 is a deficient number, since it is larger than the sum of its proper divisors (1).

25488937757 is an equidigital number, since it uses as much as digits as its factorization.

25488937757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118540800, while the sum is 65.

The spelling of 25488937757 in words is "twenty-five billion, four hundred eighty-eight million, nine hundred thirty-seven thousand, seven hundred fifty-seven".