5654360021 has 8 divisors (see below), whose sum is σ = 5993970840. Its totient is φ = 5315527168.

The previous prime is 5654360009. The next prime is 5654360069. The reversal of 5654360021 is 1200634565.

5654360021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4636111921 + 1018248100 = 68089^2 + 31910^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5654360021 is a prime.

It is a super-3 number, since 3×5654360021³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5654360021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5654360071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179486 + ... + 208623.

It is an arithmetic number, because the mean of its divisors is an integer number (749246355).

Almost surely, 2^5654360021 is an apocalyptic number.

It is an amenable number.

5654360021 is a deficient number, since it is larger than the sum of its proper divisors (339610819).

5654360021 is a wasteful number, since it uses less digits than its factorization.

5654360021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388983.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 5654360021 is about 75195.4787271150. The cubic root of 5654360021 is about 1781.5355202004.

Adding to 5654360021 its reverse (1200634565), we get a palindrome (6854994586).

The spelling of 5654360021 in words is "five billion, six hundred fifty-four million, three hundred sixty thousand, twenty-one".