5205514021 has 8 divisors (see below), whose sum is σ = 5267988824. Its totient is φ = 5143219200.

The previous prime is 5205513991. The next prime is 5205514033. The reversal of 5205514021 is 1204155025.

It can be written as a sum of positive squares in 4 ways, for example, as 432224100 + 4773289921 = 20790^2 + 69089^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5205514021 - 2¹¹ = 5205511973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5205514921) 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, 13651 + ... + 102943.

It is an arithmetic number, because the mean of its divisors is an integer number (658498603).

Almost surely, 2^5205514021 is an apocalyptic number.

It is an amenable number.

5205514021 is a deficient number, since it is larger than the sum of its proper divisors (62474803).

5205514021 is an equidigital number, since it uses as much as digits as its factorization.

5205514021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89991.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 5205514021 is about 72149.2482358618. The cubic root of 5205514021 is about 1733.0903611062.

Adding to 5205514021 its reverse (1204155025), we get a palindrome (6409669046).

The spelling of 5205514021 in words is "five billion, two hundred five million, five hundred fourteen thousand, twenty-one".