2040005525 has 24 divisors (see below), whose sum is σ = 2688738624. Its totient is φ = 1530080000.

The previous prime is 2040005521. The next prime is 2040005549. The reversal of 2040005525 is 5255000402.

It is not a de Polignac number, because 2040005525 - 2² = 2040005521 is a prime.

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 2040005525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040005521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102650 + ... + 120900.

It is an arithmetic number, because the mean of its divisors is an integer number (112030776).

Almost surely, 2^2040005525 is an apocalyptic number.

2040005525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2040005525 is a deficient number, since it is larger than the sum of its proper divisors (648733099).

2040005525 is a wasteful number, since it uses less digits than its factorization.

2040005525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18541 (or 18536 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 2040005525 is about 45166.4203252815. The cubic root of 2040005525 is about 1268.2662860376.

Adding to 2040005525 its reverse (5255000402), we get a palindrome (7295005927).

The spelling of 2040005525 in words is "two billion, forty million, five thousand, five hundred twenty-five".