552321779 has 2 divisors, whose sum is σ = 552321780. Its totient is φ = 552321778.

The previous prime is 552321719. The next prime is 552321821. The reversal of 552321779 is 977123255.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-552321779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (552321719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276160889 + 276160890.

It is an arithmetic number, because the mean of its divisors is an integer number (276160890).

Almost surely, 2^552321779 is an apocalyptic number.

552321779 is a deficient number, since it is larger than the sum of its proper divisors (1).

552321779 is an equidigital number, since it uses as much as digits as its factorization.

552321779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The square root of 552321779 is about 23501.5271631441. The cubic root of 552321779 is about 820.4725508457.

The spelling of 552321779 in words is "five hundred fifty-two million, three hundred twenty-one thousand, seven hundred seventy-nine".