553695643 has 2 divisors, whose sum is σ = 553695644. Its totient is φ = 553695642.

The previous prime is 553695641. The next prime is 553695733. The reversal of 553695643 is 346596355.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 553695643 - 2¹ = 553695641 is a prime.

Together with 553695641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 553695593 and 553695602.

It is not a weakly prime, because it can be changed into another prime (553695641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276847821 + 276847822.

It is an arithmetic number, because the mean of its divisors is an integer number (276847822).

Almost surely, 2^553695643 is an apocalyptic number.

553695643 is a deficient number, since it is larger than the sum of its proper divisors (1).

553695643 is an equidigital number, since it uses as much as digits as its factorization.

553695643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458000, while the sum is 46.

The square root of 553695643 is about 23530.7382587117. The cubic root of 553695643 is about 821.1522780182.

The spelling of 553695643 in words is "five hundred fifty-three million, six hundred ninety-five thousand, six hundred forty-three".