25552805525 has 48 divisors (see below), whose sum is σ = 35353570560. Its totient is φ = 18191174400.

The previous prime is 25552805483. The next prime is 25552805527. The reversal of 25552805525 is 52550825552.

It is a happy number.

It is not a de Polignac number, because 25552805525 - 2⁶ = 25552805461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25552805527) 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 in 47 ways as a sum of consecutive naturals, for example, 7642004 + ... + 7645346.

It is an arithmetic number, because the mean of its divisors is an integer number (736532720).

Almost surely, 2^25552805525 is an apocalyptic number.

25552805525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25552805525 is a deficient number, since it is larger than the sum of its proper divisors (9800765035).

25552805525 is a wasteful number, since it uses less digits than its factorization.

25552805525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206 (or 4201 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 25552805525 in words is "twenty-five billion, five hundred fifty-two million, eight hundred five thousand, five hundred twenty-five".