25270577513 has 2 divisors, whose sum is σ = 25270577514. Its totient is φ = 25270577512.

The previous prime is 25270577491. The next prime is 25270577567. The reversal of 25270577513 is 31577507252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13231440784 + 12039136729 = 115028^2 + 109723^2 .

It is a cyclic number.

It is not a de Polignac number, because 25270577513 - 2²⁰ = 25269528937 is a prime.

It is not a weakly prime, because it can be changed into another prime (25275577513) 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, 12635288756 + 12635288757.

It is an arithmetic number, because the mean of its divisors is an integer number (12635288757).

Almost surely, 2^25270577513 is an apocalyptic number.

It is an amenable number.

25270577513 is a deficient number, since it is larger than the sum of its proper divisors (1).

25270577513 is an equidigital number, since it uses as much as digits as its factorization.

25270577513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 514500, while the sum is 44.

The spelling of 25270577513 in words is "twenty-five billion, two hundred seventy million, five hundred seventy-seven thousand, five hundred thirteen".