2455451324521 has 4 divisors (see below), whose sum is σ = 2644332195652. Its totient is φ = 2266570453392.

The previous prime is 2455451324489. The next prime is 2455451324537. The reversal of 2455451324521 is 1254231545542.

2455451324521 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 1133788392025 + 1321662932496 = 1064795^2 + 1149636^2 .

It is a cyclic number.

It is not a de Polignac number, because 2455451324521 - 2⁵ = 2455451324489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2455451324561) 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, 94440435546 + ... + 94440435571.

It is an arithmetic number, because the mean of its divisors is an integer number (661083048913).

Almost surely, 2^{2455451324521} is an apocalyptic number.

It is an amenable number.

2455451324521 is a deficient number, since it is larger than the sum of its proper divisors (188880871131).

2455451324521 is a wasteful number, since it uses less digits than its factorization.

2455451324521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188880871130.

The product of its digits is 960000, while the sum is 43.

The spelling of 2455451324521 in words is "two trillion, four hundred fifty-five billion, four hundred fifty-one million, three hundred twenty-four thousand, five hundred twenty-one".