5644451253 has 8 divisors (see below), whose sum is σ = 8601068608. Its totient is φ = 3225400704.

The previous prime is 5644451251. The next prime is 5644451273. The reversal of 5644451253 is 3521544465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5644451253 - 2¹ = 5644451251 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 (5644451251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134391676 + ... + 134391717.

It is an arithmetic number, because the mean of its divisors is an integer number (1075133576).

Almost surely, 2^5644451253 is an apocalyptic number.

It is an amenable number.

5644451253 is a deficient number, since it is larger than the sum of its proper divisors (2956617355).

5644451253 is a wasteful number, since it uses less digits than its factorization.

5644451253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268783403.

The product of its digits is 288000, while the sum is 39.

The square root of 5644451253 is about 75129.5631093380. The cubic root of 5644451253 is about 1780.4942503478.

The spelling of 5644451253 in words is "five billion, six hundred forty-four million, four hundred fifty-one thousand, two hundred fifty-three".