557253443 has 2 divisors, whose sum is σ = 557253444. Its totient is φ = 557253442.

The previous prime is 557253379. The next prime is 557253467. The reversal of 557253443 is 344352755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557253443 - 2⁶ = 557253379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 557253397 and 557253406.

It is not a weakly prime, because it can be changed into another prime (557253493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278626721 + 278626722.

It is an arithmetic number, because the mean of its divisors is an integer number (278626722).

Almost surely, 2^557253443 is an apocalyptic number.

557253443 is a deficient number, since it is larger than the sum of its proper divisors (1).

557253443 is an equidigital number, since it uses as much as digits as its factorization.

557253443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 38.

The square root of 557253443 is about 23606.2161940452. The cubic root of 557253443 is about 822.9073098344.

The spelling of 557253443 in words is "five hundred fifty-seven million, two hundred fifty-three thousand, four hundred forty-three".