20125460525115 has 16 divisors (see below), whose sum is σ = 35128076553216. Its totient is φ = 9757799042400.

The previous prime is 20125460525089. The next prime is 20125460525123. The reversal of 20125460525115 is 51152506452102.

It is a happy number.

It is not a de Polignac number, because 20125460525115 - 2⁸ = 20125460524859 is a prime.

It is a super-2 number, since 2×20125460525115² (a number of 27 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, 60986243851 + ... + 60986244180.

It is an arithmetic number, because the mean of its divisors is an integer number (2195504784576).

Almost surely, 2^{20125460525115} is an apocalyptic number.

20125460525115 is a deficient number, since it is larger than the sum of its proper divisors (15002616028101).

20125460525115 is a wasteful number, since it uses less digits than its factorization.

20125460525115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121972488050.

The product of its (nonzero) digits is 120000, while the sum is 39.

Adding to 20125460525115 its reverse (51152506452102), we get a palindrome (71277966977217).

The spelling of 20125460525115 in words is "twenty trillion, one hundred twenty-five billion, four hundred sixty million, five hundred twenty-five thousand, one hundred fifteen".