25163145 has 96 divisors (see below), whose sum is σ = 54632448. Its totient is φ = 10450944.

The previous prime is 25163141. The next prime is 25163153. The reversal of 25163145 is 54136152.

25163145 = T₁₆₈ + T₁₆₉ + ... + T₅₃₇.

25163145 is a `hidden beast` number, since 2 + 516 + 3 + 145 = 666.

It is not a de Polignac number, because 25163145 - 2² = 25163141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25163141) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 198072 + ... + 198198.

It is an arithmetic number, because the mean of its divisors is an integer number (569088).

Almost surely, 2^25163145 is an apocalyptic number.

It is an amenable number.

25163145 is an abundant number, since it is smaller than the sum of its proper divisors (29469303).

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

25163145 is a wasteful number, since it uses less digits than its factorization.

25163145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 196 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 25163145 is about 5016.2879702027. The cubic root of 25163145 is about 293.0364470652.

Adding to 25163145 its reverse (54136152), we get a palindrome (79299297).

The spelling of 25163145 in words is "twenty-five million, one hundred sixty-three thousand, one hundred forty-five".