552821723 has 2 divisors, whose sum is σ = 552821724. Its totient is φ = 552821722.

The previous prime is 552821713. The next prime is 552821761. The reversal of 552821723 is 327128255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 552821723 - 2⁴ = 552821707 is a prime.

It is a super-2 number, since 2×552821723² = 611223714841377458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (552821713) 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, 276410861 + 276410862.

It is an arithmetic number, because the mean of its divisors is an integer number (276410862).

Almost surely, 2^552821723 is an apocalyptic number.

552821723 is a deficient number, since it is larger than the sum of its proper divisors (1).

552821723 is an equidigital number, since it uses as much as digits as its factorization.

552821723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33600, while the sum is 35.

The square root of 552821723 is about 23512.1611724656. The cubic root of 552821723 is about 820.7200313561.

Adding to 552821723 its reverse (327128255), we get a palindrome (879949978).

The spelling of 552821723 in words is "five hundred fifty-two million, eight hundred twenty-one thousand, seven hundred twenty-three".