5559954821 has 2 divisors, whose sum is σ = 5559954822. Its totient is φ = 5559954820.

The previous prime is 5559954797. The next prime is 5559954863. The reversal of 5559954821 is 1284599555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5393286721 + 166668100 = 73439^2 + 12910^2 .

It is a cyclic number.

It is not a de Polignac number, because 5559954821 - 2¹⁴ = 5559938437 is a prime.

It is a super-2 number, since 2×5559954821² = 61826195223122284082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5559954871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779977410 + 2779977411.

It is an arithmetic number, because the mean of its divisors is an integer number (2779977411).

Almost surely, 2^5559954821 is an apocalyptic number.

It is an amenable number.

5559954821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5559954821 is an equidigital number, since it uses as much as digits as its factorization.

5559954821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240000, while the sum is 53.

The square root of 5559954821 is about 74565.1045798234. The cubic root of 5559954821 is about 1771.5649836737.

The spelling of 5559954821 in words is "five billion, five hundred fifty-nine million, nine hundred fifty-four thousand, eight hundred twenty-one".