255386902619 has 2 divisors, whose sum is σ = 255386902620. Its totient is φ = 255386902618.

The previous prime is 255386902583. The next prime is 255386902627. The reversal of 255386902619 is 916209683552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255386902619 - 2²⁰ = 255385854043 is a prime.

It is a super-2 number, since 2×255386902619² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255386902319) 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, 127693451309 + 127693451310.

It is an arithmetic number, because the mean of its divisors is an integer number (127693451310).

Almost surely, 2^255386902619 is an apocalyptic number.

255386902619 is a deficient number, since it is larger than the sum of its proper divisors (1).

255386902619 is an equidigital number, since it uses as much as digits as its factorization.

255386902619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 255386902619 in words is "two hundred fifty-five billion, three hundred eighty-six million, nine hundred two thousand, six hundred nineteen".