553291997 has 2 divisors, whose sum is σ = 553291998. Its totient is φ = 553291996.

The previous prime is 553291967. The next prime is 553292011. The reversal of 553291997 is 799192355.

It is a happy number.

553291997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522533881 + 30758116 = 22859^2 + 5546^2 .

It is a cyclic number.

It is not a de Polignac number, because 553291997 - 2¹⁰ = 553290973 is a prime.

It is a super-2 number, since 2×553291997² = 612264067888496018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553291967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276645998 + 276645999.

It is an arithmetic number, because the mean of its divisors is an integer number (276645999).

Almost surely, 2^553291997 is an apocalyptic number.

It is an amenable number.

553291997 is a deficient number, since it is larger than the sum of its proper divisors (1).

553291997 is an equidigital number, since it uses as much as digits as its factorization.

553291997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 765450, while the sum is 50.

The square root of 553291997 is about 23522.1597010139. The cubic root of 553291997 is about 820.9526885788.

The spelling of 553291997 in words is "five hundred fifty-three million, two hundred ninety-one thousand, nine hundred ninety-seven".