2125611525 has 24 divisors (see below), whose sum is σ = 3558839680. Its totient is φ = 1119306240.

The previous prime is 2125611511. The next prime is 2125611547. The reversal of 2125611525 is 5251165212.

It is not a de Polignac number, because 2125611525 - 2⁹ = 2125611013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2125611492 and 2125611501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173452 + ... + 185301.

Almost surely, 2^2125611525 is an apocalyptic number.

2125611525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2125611525 is a deficient number, since it is larger than the sum of its proper divisors (1433228155).

2125611525 is a wasteful number, since it uses less digits than its factorization.

2125611525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358845 (or 358840 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 2125611525 is about 46104.3547292444. The cubic root of 2125611525 is about 1285.7641092244.

Adding to 2125611525 its reverse (5251165212), we get a palindrome (7376776737).

The spelling of 2125611525 in words is "two billion, one hundred twenty-five million, six hundred eleven thousand, five hundred twenty-five".