453225050021 has 4 divisors (see below), whose sum is σ = 455844848172. Its totient is φ = 450605251872.

The previous prime is 453225049957. The next prime is 453225050051. The reversal of 453225050021 is 120050522354.

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 352663761025 + 100561288996 = 593855^2 + 317114^2 .

It is a cyclic number.

It is not a de Polignac number, because 453225050021 - 2⁶ = 453225049957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453225050051) 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, 1309898816 + ... + 1309899161.

It is an arithmetic number, because the mean of its divisors is an integer number (113961212043).

Almost surely, 2^453225050021 is an apocalyptic number.

It is an amenable number.

453225050021 is a deficient number, since it is larger than the sum of its proper divisors (2619798151).

453225050021 is a wasteful number, since it uses less digits than its factorization.

453225050021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619798150.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 453225050021 its reverse (120050522354), we get a palindrome (573275572375).

The spelling of 453225050021 in words is "four hundred fifty-three billion, two hundred twenty-five million, fifty thousand, twenty-one".