25573675556 has 144 divisors (see below), whose sum is σ = 57454387200. Its totient is φ = 9835862400.

The previous prime is 25573675529. The next prime is 25573675571. The reversal of 25573675556 is 65557637552.

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 47 ways as a sum of consecutive naturals, for example, 4376885 + ... + 4382723.

It is an arithmetic number, because the mean of its divisors is an integer number (398988800).

Almost surely, 2^25573675556 is an apocalyptic number.

25573675556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25573675556 is an abundant number, since it is smaller than the sum of its proper divisors (31880711644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25573675556 is a wasteful number, since it uses less digits than its factorization.

25573675556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5930 (or 5915 counting only the distinct ones).

The product of its digits is 33075000, while the sum is 56.

The spelling of 25573675556 in words is "twenty-five billion, five hundred seventy-three million, six hundred seventy-five thousand, five hundred fifty-six".