556290697 has 2 divisors, whose sum is σ = 556290698. Its totient is φ = 556290696.

The previous prime is 556290667. The next prime is 556290727. The reversal of 556290697 is 796092655.

It is a balanced prime because it is at equal distance from previous prime (556290667) and next prime (556290727).

It can be written as a sum of positive squares in only one way, i.e., 546437376 + 9853321 = 23376^2 + 3139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556290697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556290697.

It is not a weakly prime, because it can be changed into another prime (556290667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278145348 + 278145349.

It is an arithmetic number, because the mean of its divisors is an integer number (278145349).

Almost surely, 2^556290697 is an apocalyptic number.

It is an amenable number.

556290697 is a deficient number, since it is larger than the sum of its proper divisors (1).

556290697 is an equidigital number, since it uses as much as digits as its factorization.

556290697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The square root of 556290697 is about 23585.8155890357. The cubic root of 556290697 is about 822.4331345636.

The spelling of 556290697 in words is "five hundred fifty-six million, two hundred ninety thousand, six hundred ninety-seven".