25220004005 has 16 divisors (see below), whose sum is σ = 35173664640. Its totient is φ = 17000601792.

The previous prime is 25220003993. The next prime is 25220004031. The reversal of 25220004005 is 50040002252.

It is a cyclic number.

It is not a de Polignac number, because 25220004005 - 2⁸ = 25220003749 is a prime.

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, 6104474 + ... + 6108603.

It is an arithmetic number, because the mean of its divisors is an integer number (2198354040).

Almost surely, 2^25220004005 is an apocalyptic number.

It is an amenable number.

25220004005 is a deficient number, since it is larger than the sum of its proper divisors (9953660635).

25220004005 is a wasteful number, since it uses less digits than its factorization.

25220004005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12213148.

The product of its (nonzero) digits is 800, while the sum is 20.

Adding to 25220004005 its reverse (50040002252), we get a palindrome (75260006257).

The spelling of 25220004005 in words is "twenty-five billion, two hundred twenty million, four thousand, five".