25545136 has 20 divisors (see below), whose sum is σ = 50052600. Its totient is φ = 12628352.

The previous prime is 25545127. The next prime is 25545167. The reversal of 25545136 is 63154552.

It is a junction number, because it is equal to n+sod(n) for n = 25545098 and 25545107.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7546 + ... + 10393.

It is an arithmetic number, because the mean of its divisors is an integer number (2502630).

Almost surely, 2^25545136 is an apocalyptic number.

It is an amenable number.

25545136 is a deficient number, since it is larger than the sum of its proper divisors (24507464).

25545136 is a wasteful number, since it uses less digits than its factorization.

25545136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18036 (or 18030 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 25545136 is about 5054.2196232455. The cubic root of 25545136 is about 294.5118269055.

Adding to 25545136 its product of digits (18000), we get a square (25563136 = 5056²).

Adding to 25545136 its reverse (63154552), we get a palindrome (88699688).

The spelling of 25545136 in words is "twenty-five million, five hundred forty-five thousand, one hundred thirty-six".