25145005 has 16 divisors (see below), whose sum is σ = 30841344. Its totient is φ = 19676160.

The previous prime is 25144997. The next prime is 25145009. The reversal of 25145005 is 50054152.

It is not a de Polignac number, because 25145005 - 2³ = 25144997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25145009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68332 + ... + 68698.

It is an arithmetic number, because the mean of its divisors is an integer number (1927584).

Almost surely, 2^25145005 is an apocalyptic number.

It is an amenable number.

25145005 is a deficient number, since it is larger than the sum of its proper divisors (5696339).

25145005 is a wasteful number, since it uses less digits than its factorization.

25145005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 25145005 is about 5014.4795343086. The cubic root of 25145005 is about 292.9660139110.

Adding to 25145005 its reverse (50054152), we get a palindrome (75199157).

The spelling of 25145005 in words is "twenty-five million, one hundred forty-five thousand, five".