555780097 has 2 divisors, whose sum is σ = 555780098. Its totient is φ = 555780096.

The previous prime is 555780091. The next prime is 555780151. The reversal of 555780097 is 790087555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 447703281 + 108076816 = 21159^2 + 10396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555780097 is a prime.

It is not a weakly prime, because it can be changed into another prime (555780091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277890048 + 277890049.

It is an arithmetic number, because the mean of its divisors is an integer number (277890049).

Almost surely, 2^555780097 is an apocalyptic number.

It is an amenable number.

555780097 is a deficient number, since it is larger than the sum of its proper divisors (1).

555780097 is an equidigital number, since it uses as much as digits as its factorization.

555780097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441000, while the sum is 46.

The square root of 555780097 is about 23574.9888016941. The cubic root of 555780097 is about 822.1814298899.

The spelling of 555780097 in words is "five hundred fifty-five million, seven hundred eighty thousand, ninety-seven".