2545024421 has 4 divisors (see below), whose sum is σ = 2577240000. Its totient is φ = 2512808844.

The previous prime is 2545024409. The next prime is 2545024439. The reversal of 2545024421 is 1244205452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2545024421 - 2⁶ = 2545024357 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 (2545024441) 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, 16107671 + ... + 16107828.

It is an arithmetic number, because the mean of its divisors is an integer number (644310000).

Almost surely, 2^2545024421 is an apocalyptic number.

It is an amenable number.

2545024421 is a deficient number, since it is larger than the sum of its proper divisors (32215579).

2545024421 is an equidigital number, since it uses as much as digits as its factorization.

2545024421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32215578.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 2545024421 is about 50448.2350632805. The cubic root of 2545024421 is about 1365.3080514293.

Adding to 2545024421 its reverse (1244205452), we get a palindrome (3789229873).

The spelling of 2545024421 in words is "two billion, five hundred forty-five million, twenty-four thousand, four hundred twenty-one".