2453441621 has 16 divisors (see below), whose sum is σ = 2545752240. Its totient is φ = 2362613760.

The previous prime is 2453441593. The next prime is 2453441623. The reversal of 2453441621 is 1261443542.

It can be written as a sum of positive squares in 8 ways, for example, as 63600625 + 2389840996 = 7975^2 + 48886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2453441621 - 2¹⁰ = 2453440597 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 (2453441623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2640485 + ... + 2641413.

It is an arithmetic number, because the mean of its divisors is an integer number (159109515).

Almost surely, 2^2453441621 is an apocalyptic number.

It is an amenable number.

2453441621 is a deficient number, since it is larger than the sum of its proper divisors (92310619).

2453441621 is a wasteful number, since it uses less digits than its factorization.

2453441621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624.

The product of its digits is 23040, while the sum is 32.

The square root of 2453441621 is about 49532.2281045382. The cubic root of 2453441621 is about 1348.7306992210.

The spelling of 2453441621 in words is "two billion, four hundred fifty-three million, four hundred forty-one thousand, six hundred twenty-one".