5521255249 has 2 divisors, whose sum is σ = 5521255250. Its totient is φ = 5521255248.

The previous prime is 5521255237. The next prime is 5521255301. The reversal of 5521255249 is 9425521255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5378022225 + 143233024 = 73335^2 + 11968^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521255249 - 2¹³ = 5521247057 is a prime.

It is a super-2 number, since 2×5521255249² = 60968519049220104002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5521253249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760627624 + 2760627625.

It is an arithmetic number, because the mean of its divisors is an integer number (2760627625).

Almost surely, 2^5521255249 is an apocalyptic number.

It is an amenable number.

5521255249 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521255249 is an equidigital number, since it uses as much as digits as its factorization.

5521255249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180000, while the sum is 40.

The square root of 5521255249 is about 74305.1495456405. The cubic root of 5521255249 is about 1767.4451366222.

The spelling of 5521255249 in words is "five billion, five hundred twenty-one million, two hundred fifty-five thousand, two hundred forty-nine".