25707013 has 2 divisors, whose sum is σ = 25707014. Its totient is φ = 25707012.

The previous prime is 25707007. The next prime is 25707053. The reversal of 25707013 is 31070752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24186724 + 1520289 = 4918^2 + 1233^2 .

It is a cyclic number.

It is not a de Polignac number, because 25707013 - 2⁹ = 25706501 is a prime.

It is a super-3 number, since 3×25707013³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25707053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12853506 + 12853507.

It is an arithmetic number, because the mean of its divisors is an integer number (12853507).

Almost surely, 2^25707013 is an apocalyptic number.

It is an amenable number.

25707013 is a deficient number, since it is larger than the sum of its proper divisors (1).

25707013 is an equidigital number, since it uses as much as digits as its factorization.

25707013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 25707013 is about 5070.2083783608. The cubic root of 25707013 is about 295.1326148939.

Adding to 25707013 its reverse (31070752), we get a palindrome (56777765).

The spelling of 25707013 in words is "twenty-five million, seven hundred seven thousand, thirteen".