802555423 has 2 divisors, whose sum is σ = 802555424. Its totient is φ = 802555422.

The previous prime is 802555417. The next prime is 802555427. The reversal of 802555423 is 324555208.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-802555423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802555427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401277711 + 401277712.

It is an arithmetic number, because the mean of its divisors is an integer number (401277712).

Almost surely, 2^802555423 is an apocalyptic number.

802555423 is a deficient number, since it is larger than the sum of its proper divisors (1).

802555423 is an equidigital number, since it uses as much as digits as its factorization.

802555423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 802555423 is about 28329.4091537399. The cubic root of 802555423 is about 929.3051513789.

The spelling of 802555423 in words is "eight hundred two million, five hundred fifty-five thousand, four hundred twenty-three".