25553116 has 12 divisors (see below), whose sum is σ = 44872632. Its totient is φ = 12732368.

The previous prime is 25553107. The next prime is 25553123. The reversal of 25553116 is 61135552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9730 + ... + 12073.

It is an arithmetic number, because the mean of its divisors is an integer number (3739386).

Almost surely, 2^25553116 is an apocalyptic number.

It is an amenable number.

25553116 is a deficient number, since it is larger than the sum of its proper divisors (19319516).

25553116 is a wasteful number, since it uses less digits than its factorization.

25553116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22100 (or 22098 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 25553116 is about 5055.0090009811. The cubic root of 25553116 is about 294.5424910562.

Adding to 25553116 its reverse (61135552), we get a palindrome (86688668).

It can be divided in two parts, 2555 and 3116, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 25553116 in words is "twenty-five million, five hundred fifty-three thousand, one hundred sixteen".