2523510505 has 4 divisors (see below), whose sum is σ = 3028212612. Its totient is φ = 2018808400.

The previous prime is 2523510497. The next prime is 2523510547. The reversal of 2523510505 is 5050153252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 653466969 + 1870043536 = 25563^2 + 43244^2 .

It is not a de Polignac number, because 2523510505 - 2³ = 2523510497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252351046 + ... + 252351055.

It is an arithmetic number, because the mean of its divisors is an integer number (757053153).

Almost surely, 2^2523510505 is an apocalyptic number.

It is an amenable number.

2523510505 is a deficient number, since it is larger than the sum of its proper divisors (504702107).

2523510505 is an equidigital number, since it uses as much as digits as its factorization.

2523510505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504702106.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 2523510505 is about 50234.5548900356. The cubic root of 2523510505 is about 1361.4500294483.

Adding to 2523510505 its reverse (5050153252), we get a palindrome (7573663757).

The spelling of 2523510505 in words is "two billion, five hundred twenty-three million, five hundred ten thousand, five hundred five".