25252525252526 has 48 divisors (see below), whose sum is σ = 45507307512912. Its totient is φ = 10437323783040.

The previous prime is 25252525252499. The next prime is 25252525252561. The reversal of 25252525252526 is 62525252525252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59691215 + ... + 60112778.

It is an arithmetic number, because the mean of its divisors is an integer number (948068906519).

Almost surely, 2^{25252525252526} is an apocalyptic number.

25252525252526 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

25252525252526 is a deficient number, since it is larger than the sum of its proper divisors (20254782260386).

25252525252526 is a wasteful number, since it uses less digits than its factorization.

25252525252526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119804097 (or 119804086 counting only the distinct ones).

The product of its digits is 12000000, while the sum is 50.

Adding to 25252525252526 its reverse (62525252525252), we get a palindrome (87777777777778).

The spelling of 25252525252526 in words is "twenty-five trillion, two hundred fifty-two billion, five hundred twenty-five million, two hundred fifty-two thousand, five hundred twenty-six".