25105222205 has 16 divisors (see below), whose sum is σ = 34701127680. Its totient is φ = 17079455232.

The previous prime is 25105222201. The next prime is 25105222229. The reversal of 25105222205 is 50222250152.

It is not a de Polignac number, because 25105222205 - 2² = 25105222201 is a prime.

It is a super-3 number, since 3×25105222205³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25105222201) 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, 2819540 + ... + 2828429.

It is an arithmetic number, because the mean of its divisors is an integer number (2168820480).

Almost surely, 2^25105222205 is an apocalyptic number.

It is an amenable number.

25105222205 is a deficient number, since it is larger than the sum of its proper divisors (9595905475).

25105222205 is a wasteful number, since it uses less digits than its factorization.

25105222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648108.

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 25105222205 its reverse (50222250152), we get a palindrome (75327472357).

The spelling of 25105222205 in words is "twenty-five billion, one hundred five million, two hundred twenty-two thousand, two hundred five".