2545224013 has 4 divisors (see below), whose sum is σ = 2545453660. Its totient is φ = 2544994368.

The previous prime is 2545224001. The next prime is 2545224023. The reversal of 2545224013 is 3104225452.

2545224013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2286561124 + 258662889 = 47818^2 + 16083^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545224013 - 2⁵ = 2545223981 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 (2545224023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97308 + ... + 120661.

It is an arithmetic number, because the mean of its divisors is an integer number (636363415).

Almost surely, 2^2545224013 is an apocalyptic number.

It is an amenable number.

2545224013 is a deficient number, since it is larger than the sum of its proper divisors (229647).

2545224013 is a wasteful number, since it uses less digits than its factorization.

2545224013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229646.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2545224013 is about 50450.2132106496. The cubic root of 2545224013 is about 1365.3437416489.

Adding to 2545224013 its reverse (3104225452), we get a palindrome (5649449465).

The spelling of 2545224013 in words is "two billion, five hundred forty-five million, two hundred twenty-four thousand, thirteen".