25043155105 has 16 divisors (see below), whose sum is σ = 31645969920. Its totient is φ = 18972569088.

The previous prime is 25043155097. The next prime is 25043155157. The reversal of 25043155105 is 50155134052.

It is a cyclic number.

It is not a de Polignac number, because 25043155105 - 2³ = 25043155097 is a prime.

It is a super-2 number, since 2×25043155105² (a number of 22 digits) contains 22 as substring.

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, 195504 + ... + 297166.

It is an arithmetic number, because the mean of its divisors is an integer number (1977873120).

Almost surely, 2^25043155105 is an apocalyptic number.

It is an amenable number.

25043155105 is a deficient number, since it is larger than the sum of its proper divisors (6602814815).

25043155105 is a wasteful number, since it uses less digits than its factorization.

25043155105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104280.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 25043155105 its reverse (50155134052), we get a palindrome (75198289157).

The spelling of 25043155105 in words is "twenty-five billion, forty-three million, one hundred fifty-five thousand, one hundred five".