5644560121 has 4 divisors (see below), whose sum is σ = 5662710144. Its totient is φ = 5626410100.

The previous prime is 5644560107. The next prime is 5644560127. The reversal of 5644560121 is 1210654465.

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 5644560121 - 2²⁵ = 5611005689 is a prime.

It is a super-2 number, since 2×5644560121² = 63722117919167069282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5644560127) 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, 9074545 + ... + 9075166.

It is an arithmetic number, because the mean of its divisors is an integer number (1415677536).

Almost surely, 2^5644560121 is an apocalyptic number.

It is an amenable number.

5644560121 is a deficient number, since it is larger than the sum of its proper divisors (18150023).

5644560121 is a wasteful number, since it uses less digits than its factorization.

5644560121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18150022.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 5644560121 is about 75130.2876408709. The cubic root of 5644560121 is about 1780.5056974365.

The spelling of 5644560121 in words is "five billion, six hundred forty-four million, five hundred sixty thousand, one hundred twenty-one".