25536145 has 8 divisors (see below), whose sum is σ = 30689280. Its totient is φ = 20398320.

The previous prime is 25536143. The next prime is 25536163. The reversal of 25536145 is 54163552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25536145 - 2¹ = 25536143 is a prime.

It is a super-2 number, since 2×25536145² = 1304189402922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25536143) 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, 240 + ... + 7150.

It is an arithmetic number, because the mean of its divisors is an integer number (3836160).

Almost surely, 2^25536145 is an apocalyptic number.

It is an amenable number.

25536145 is a deficient number, since it is larger than the sum of its proper divisors (5153135).

25536145 is an equidigital number, since it uses as much as digits as its factorization.

25536145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655.

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

The square root of 25536145 is about 5053.3300901485. The cubic root of 25536145 is about 294.4772702087.

Adding to 25536145 its reverse (54163552), we get a palindrome (79699697).

The spelling of 25536145 in words is "twenty-five million, five hundred thirty-six thousand, one hundred forty-five".