557023293 has 12 divisors (see below), whose sum is σ = 804854908. Its totient is φ = 371226240.

The previous prime is 557023277. The next prime is 557023339. The reversal of 557023293 is 392320755.

It can be written as a sum of positive squares in 2 ways, for example, as 319801689 + 237221604 = 17883^2 + 15402^2 .

It is not a de Polignac number, because 557023293 - 2⁴ = 557023277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557023393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24903 + ... + 41643.

Almost surely, 2^557023293 is an apocalyptic number.

It is an amenable number.

557023293 is a deficient number, since it is larger than the sum of its proper divisors (247831615).

557023293 is a wasteful number, since it uses less digits than its factorization.

557023293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20444 (or 20441 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 557023293 is about 23601.3409152955. The cubic root of 557023293 is about 822.7940051976.

The spelling of 557023293 in words is "five hundred fifty-seven million, twenty-three thousand, two hundred ninety-three".