20125532525105 has 8 divisors (see below), whose sum is σ = 27600730320192. Its totient is φ = 13800365160048.

The previous prime is 20125532525081. The next prime is 20125532525129. The reversal of 20125532525105 is 50152523552102.

It is an interprime number because it is at equal distance from previous prime (20125532525081) and next prime (20125532525129).

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

It is a cyclic number.

It is not a de Polignac number, because 20125532525105 - 2¹⁶ = 20125532459569 is a prime.

It is a super-5 number, since 5×20125532525105⁵ (a number of 68 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287507607467 + ... + 287507607536.

It is an arithmetic number, because the mean of its divisors is an integer number (3450091290024).

Almost surely, 2^{20125532525105} is an apocalyptic number.

It is an amenable number.

20125532525105 is a deficient number, since it is larger than the sum of its proper divisors (7475197795087).

20125532525105 is an equidigital number, since it uses as much as digits as its factorization.

20125532525105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575015215015.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 20125532525105 in words is "twenty trillion, one hundred twenty-five billion, five hundred thirty-two million, five hundred twenty-five thousand, one hundred five".