2100026525 has 6 divisors (see below), whose sum is σ = 2604032922. Its totient is φ = 1680021200.

The previous prime is 2100026497. The next prime is 2100026527. The reversal of 2100026525 is 5256200012.

It can be written as a sum of positive squares in 3 ways, for example, as 170093764 + 1929932761 = 13042^2 + 43931^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2100026525 is a prime.

It is a super-2 number, since 2×2100026525² = 8820222811407151250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100026525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100026527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42000506 + ... + 42000555.

It is an arithmetic number, because the mean of its divisors is an integer number (434005487).

Almost surely, 2^2100026525 is an apocalyptic number.

2100026525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2100026525 is a deficient number, since it is larger than the sum of its proper divisors (504006397).

2100026525 is an equidigital number, since it uses as much as digits as its factorization.

2100026525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84001071 (or 84001066 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2100026525 is about 45826.0463601214. The cubic root of 2100026525 is about 1280.5845566096.

Adding to 2100026525 its reverse (5256200012), we get a palindrome (7356226537).

The spelling of 2100026525 in words is "two billion, one hundred million, twenty-six thousand, five hundred twenty-five".