2523505445 has 8 divisors (see below), whose sum is σ = 3037761144. Its totient is φ = 2012434624.

The previous prime is 2523505427. The next prime is 2523505447. The reversal of 2523505445 is 5445053252.

It can be written as a sum of positive squares in 4 ways, for example, as 196504324 + 2327001121 = 14018^2 + 48239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2523505445 - 2⁸ = 2523505189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523505447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794474 + ... + 797643.

It is an arithmetic number, because the mean of its divisors is an integer number (379720143).

Almost surely, 2^2523505445 is an apocalyptic number.

It is an amenable number.

2523505445 is a deficient number, since it is larger than the sum of its proper divisors (514255699).

2523505445 is a wasteful number, since it uses less digits than its factorization.

2523505445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592439.

The product of its (nonzero) digits is 120000, while the sum is 35.

The square root of 2523505445 is about 50234.5045262716. The cubic root of 2523505445 is about 1361.4491194803.

Adding to 2523505445 its reverse (5445053252), we get a palindrome (7968558697).

The spelling of 2523505445 in words is "two billion, five hundred twenty-three million, five hundred five thousand, four hundred forty-five".