556933397 has 2 divisors, whose sum is σ = 556933398. Its totient is φ = 556933396.

The previous prime is 556933393. The next prime is 556933411. The reversal of 556933397 is 793339655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 516471076 + 40462321 = 22726^2 + 6361^2 .

It is a cyclic number.

It is not a de Polignac number, because 556933397 - 2² = 556933393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556933393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278466698 + 278466699.

It is an arithmetic number, because the mean of its divisors is an integer number (278466699).

Almost surely, 2^556933397 is an apocalyptic number.

It is an amenable number.

556933397 is a deficient number, since it is larger than the sum of its proper divisors (1).

556933397 is an equidigital number, since it uses as much as digits as its factorization.

556933397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2296350, while the sum is 50.

The square root of 556933397 is about 23599.4363703882. The cubic root of 556933397 is about 822.7497402209.

The spelling of 556933397 in words is "five hundred fifty-six million, nine hundred thirty-three thousand, three hundred ninety-seven".