2106004525 has 12 divisors (see below), whose sum is σ = 2617174132. Its totient is φ = 1681107840.

The previous prime is 2106004519. The next prime is 2106004541. The reversal of 2106004525 is 5254006012.

It can be written as a sum of positive squares in 6 ways, for example, as 35117476 + 2070887049 = 5926^2 + 45507^2 .

It is not a de Polignac number, because 2106004525 - 2⁵ = 2106004493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 2106004525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80742 + ... + 103591.

Almost surely, 2^2106004525 is an apocalyptic number.

2106004525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2106004525 is a deficient number, since it is larger than the sum of its proper divisors (511169607).

2106004525 is a wasteful number, since it uses less digits than its factorization.

2106004525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184800 (or 184795 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2106004525 is about 45891.2249237259. The cubic root of 2106004525 is about 1281.7985225420.

The spelling of 2106004525 in words is "two billion, one hundred six million, four thousand, five hundred twenty-five".