25105135155 has 8 divisors (see below), whose sum is σ = 40168216272. Its totient is φ = 13389405408.

The previous prime is 25105135151. The next prime is 25105135177. The reversal of 25105135155 is 55153150152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25105135155 - 2² = 25105135151 is a prime.

It is a super-2 number, since 2×25105135155² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25105135151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836837824 + ... + 836837853.

It is an arithmetic number, because the mean of its divisors is an integer number (5021027034).

Almost surely, 2^25105135155 is an apocalyptic number.

25105135155 is a deficient number, since it is larger than the sum of its proper divisors (15063081117).

25105135155 is a wasteful number, since it uses less digits than its factorization.

25105135155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673675685.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 25105135155 in words is "twenty-five billion, one hundred five million, one hundred thirty-five thousand, one hundred fifty-five".