25045005 has 16 divisors (see below), whose sum is σ = 40173120. Its totient is φ = 13323648.

The previous prime is 25044977. The next prime is 25045019. The reversal of 25045005 is 50054052.

It is not a de Polignac number, because 25045005 - 2⁶ = 25044941 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4761 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (2510820).

Almost surely, 2^25045005 is an apocalyptic number.

It is an amenable number.

25045005 is a deficient number, since it is larger than the sum of its proper divisors (15128115).

25045005 is a wasteful number, since it uses less digits than its factorization.

25045005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 25045005 is about 5004.4984763710. The cubic root of 25045005 is about 292.5771291962.

Adding to 25045005 its reverse (50054052), we get a palindrome (75099057).

The spelling of 25045005 in words is "twenty-five million, forty-five thousand, five".