2523445885 has 4 divisors (see below), whose sum is σ = 3028135068. Its totient is φ = 2018756704.

The previous prime is 2523445867. The next prime is 2523445907. The reversal of 2523445885 is 5885443252.

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 1627880409 + 895565476 = 40347^2 + 29926^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523445885 - 2¹¹ = 2523443837 is a prime.

It is a super-4 number, since 4×2523445885⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent 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, 252344584 + ... + 252344593.

It is an arithmetic number, because the mean of its divisors is an integer number (757033767).

Almost surely, 2^2523445885 is an apocalyptic number.

It is an amenable number.

2523445885 is a deficient number, since it is larger than the sum of its proper divisors (504689183).

2523445885 is an equidigital number, since it uses as much as digits as its factorization.

2523445885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504689182.

The product of its digits is 1536000, while the sum is 46.

The square root of 2523445885 is about 50233.9117031513. The cubic root of 2523445885 is about 1361.4384083816.

The spelling of 2523445885 in words is "two billion, five hundred twenty-three million, four hundred forty-five thousand, eight hundred eighty-five".