5531021449 has 2 divisors, whose sum is σ = 5531021450. Its totient is φ = 5531021448.

The previous prime is 5531021407. The next prime is 5531021459. The reversal of 5531021449 is 9441201355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2916540025 + 2614481424 = 54005^2 + 51132^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531021449 - 2²⁷ = 5396803721 is a prime.

It is not a weakly prime, because it can be changed into another prime (5531021459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765510724 + 2765510725.

It is an arithmetic number, because the mean of its divisors is an integer number (2765510725).

Almost surely, 2^5531021449 is an apocalyptic number.

It is an amenable number.

5531021449 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531021449 is an equidigital number, since it uses as much as digits as its factorization.

5531021449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 5531021449 is about 74370.8373557808. The cubic root of 5531021449 is about 1768.4866301760.

The spelling of 5531021449 in words is "five billion, five hundred thirty-one million, twenty-one thousand, four hundred forty-nine".