25303864552 has 32 divisors (see below), whose sum is σ = 49567723200. Its totient is φ = 12087142144.

The previous prime is 25303864543. The next prime is 25303864577. The reversal of 25303864552 is 25546830352.

It is a super-2 number, since 2×25303864552² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25303864499 and 25303864508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69024 + ... + 235312.

It is an arithmetic number, because the mean of its divisors is an integer number (1548991350).

Almost surely, 2^25303864552 is an apocalyptic number.

It is an amenable number.

25303864552 is a deficient number, since it is larger than the sum of its proper divisors (24263858648).

25303864552 is a wasteful number, since it uses less digits than its factorization.

25303864552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167145 (or 167141 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 25303864552 in words is "twenty-five billion, three hundred three million, eight hundred sixty-four thousand, five hundred fifty-two".