25714511513 has 2 divisors, whose sum is σ = 25714511514. Its totient is φ = 25714511512.

The previous prime is 25714511467. The next prime is 25714511533. The reversal of 25714511513 is 31511541752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20212877584 + 5501633929 = 142172^2 + 74173^2 .

It is a cyclic number.

It is not a de Polignac number, because 25714511513 - 2¹⁰ = 25714510489 is a prime.

It is a super-2 number, since 2×25714511513² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25714511533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12857255756 + 12857255757.

It is an arithmetic number, because the mean of its divisors is an integer number (12857255757).

Almost surely, 2^25714511513 is an apocalyptic number.

It is an amenable number.

25714511513 is a deficient number, since it is larger than the sum of its proper divisors (1).

25714511513 is an equidigital number, since it uses as much as digits as its factorization.

25714511513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21000, while the sum is 35.

The spelling of 25714511513 in words is "twenty-five billion, seven hundred fourteen million, five hundred eleven thousand, five hundred thirteen".