2125551013525 has 12 divisors (see below), whose sum is σ = 2774403428800. Its totient is φ = 1610943925680.

The previous prime is 2125551013519. The next prime is 2125551013529. The reversal of 2125551013525 is 5253101555212.

It is not a de Polignac number, because 2125551013525 - 2²⁹ = 2125014142613 is a prime.

It is a super-2 number, since 2×2125551013525² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125551013529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2237421645 + ... + 2237422594.

Almost surely, 2^{2125551013525} is an apocalyptic number.

2125551013525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2125551013525 is a deficient number, since it is larger than the sum of its proper divisors (648852415275).

2125551013525 is a wasteful number, since it uses less digits than its factorization.

2125551013525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474844268 (or 4474844263 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 37.

Adding to 2125551013525 its reverse (5253101555212), we get a palindrome (7378652568737).

The spelling of 2125551013525 in words is "two trillion, one hundred twenty-five billion, five hundred fifty-one million, thirteen thousand, five hundred twenty-five".