3215255249 has 2 divisors, whose sum is σ = 3215255250. Its totient is φ = 3215255248.

The previous prime is 3215255213. The next prime is 3215255269. The reversal of 3215255249 is 9425525123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2220294400 + 994960849 = 47120^2 + 31543^2 .

It is a cyclic number.

It is not a de Polignac number, because 3215255249 - 2¹⁶ = 3215189713 is a prime.

It is not a weakly prime, because it can be changed into another prime (3215255269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607627624 + 1607627625.

It is an arithmetic number, because the mean of its divisors is an integer number (1607627625).

Almost surely, 2^3215255249 is an apocalyptic number.

It is an amenable number.

3215255249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3215255249 is an equidigital number, since it uses as much as digits as its factorization.

3215255249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The square root of 3215255249 is about 56703.2207991751. The cubic root of 3215255249 is about 1475.9505888540.

The spelling of 3215255249 in words is "three billion, two hundred fifteen million, two hundred fifty-five thousand, two hundred forty-nine".