25485556 has 24 divisors (see below), whose sum is σ = 45700200. Its totient is φ = 12432000.

The previous prime is 25485553. The next prime is 25485569. The reversal of 25485556 is 65558452.

It can be written as a sum of positive squares in 4 ways, for example, as 144400 + 25341156 = 380^2 + 5034^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25485553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36006 + ... + 36706.

It is an arithmetic number, because the mean of its divisors is an integer number (1904175).

Almost surely, 2^25485556 is an apocalyptic number.

It is an amenable number.

25485556 is a deficient number, since it is larger than the sum of its proper divisors (20214644).

25485556 is a wasteful number, since it uses less digits than its factorization.

25485556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915 (or 913 counting only the distinct ones).

The product of its digits is 240000, while the sum is 40.

The square root of 25485556 is about 5048.3220974894. The cubic root of 25485556 is about 294.2826812052.

The spelling of 25485556 in words is "twenty-five million, four hundred eighty-five thousand, five hundred fifty-six".