553864669 has 2 divisors, whose sum is σ = 553864670. Its totient is φ = 553864668.

The previous prime is 553864627. The next prime is 553864691. The reversal of 553864669 is 966468355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 510172569 + 43692100 = 22587^2 + 6610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553864669 is a prime.

It is a super-2 number, since 2×553864669² = 613532143132959122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553864609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276932334 + 276932335.

It is an arithmetic number, because the mean of its divisors is an integer number (276932335).

Almost surely, 2^553864669 is an apocalyptic number.

It is an amenable number.

553864669 is a deficient number, since it is larger than the sum of its proper divisors (1).

553864669 is an equidigital number, since it uses as much as digits as its factorization.

553864669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 52.

The square root of 553864669 is about 23534.3295846727. The cubic root of 553864669 is about 821.2358269051.

It can be divided in two parts, 5538 and 64669, that added together give a palindrome (70207).

The spelling of 553864669 in words is "five hundred fifty-three million, eight hundred sixty-four thousand, six hundred sixty-nine".