515880383 has 2 divisors, whose sum is σ = 515880384. Its totient is φ = 515880382.

The previous prime is 515880361. The next prime is 515880397. The reversal of 515880383 is 383088515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 515880383 - 2¹² = 515876287 is a prime.

It is a super-2 number, since 2×515880383² = 532265139128453378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 515880383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515880583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257940191 + 257940192.

It is an arithmetic number, because the mean of its divisors is an integer number (257940192).

Almost surely, 2^515880383 is an apocalyptic number.

515880383 is a deficient number, since it is larger than the sum of its proper divisors (1).

515880383 is an equidigital number, since it uses as much as digits as its factorization.

515880383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 515880383 is about 22713.0003081935. Note that the first 3 decimals coincide. The cubic root of 515880383 is about 802.0159484850.

The spelling of 515880383 in words is "five hundred fifteen million, eight hundred eighty thousand, three hundred eighty-three".