552043991 has 2 divisors, whose sum is σ = 552043992. Its totient is φ = 552043990.

The previous prime is 552043963. The next prime is 552044057. The reversal of 552043991 is 199340255.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 552043991 - 2⁶ = 552043927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (552043901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276021995 + 276021996.

It is an arithmetic number, because the mean of its divisors is an integer number (276021996).

Almost surely, 2^552043991 is an apocalyptic number.

552043991 is a deficient number, since it is larger than the sum of its proper divisors (1).

552043991 is an equidigital number, since it uses as much as digits as its factorization.

552043991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 552043991 is about 23495.6164209412. The cubic root of 552043991 is about 820.3349766644.

It can be divided in two parts, 55204 and 3991, that added together give a palindrome (59195).

The spelling of 552043991 in words is "five hundred fifty-two million, forty-three thousand, nine hundred ninety-one".