2525404505 has 32 divisors (see below), whose sum is σ = 3309132960. Its totient is φ = 1839052800.

The previous prime is 2525404501. The next prime is 2525404523. The reversal of 2525404505 is 5054045252.

2525404505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 352725961 + 2172678544 = 18781^2 + 46612^2 .

It is not a de Polignac number, because 2525404505 - 2² = 2525404501 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2525404501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2054231 + ... + 2055459.

It is an arithmetic number, because the mean of its divisors is an integer number (103410405).

Almost surely, 2^2525404505 is an apocalyptic number.

It is an amenable number.

2525404505 is a deficient number, since it is larger than the sum of its proper divisors (783728455).

2525404505 is a wasteful number, since it uses less digits than its factorization.

2525404505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661.

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 2525404505 is about 50253.4029196034. The cubic root of 2525404505 is about 1361.7905526345.

Adding to 2525404505 its reverse (5054045252), we get a palindrome (7579449757).

The spelling of 2525404505 in words is "two billion, five hundred twenty-five million, four hundred four thousand, five hundred five".