555198797 has 4 divisors (see below), whose sum is σ = 565674300. Its totient is φ = 544723296.

The previous prime is 555198781. The next prime is 555198811. The reversal of 555198797 is 797891555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 265722601 + 289476196 = 16301^2 + 17014^2 .

It is a cyclic number.

It is not a de Polignac number, because 555198797 - 2⁴ = 555198781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555108797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5237672 + ... + 5237777.

It is an arithmetic number, because the mean of its divisors is an integer number (141418575).

Almost surely, 2^555198797 is an apocalyptic number.

It is an amenable number.

555198797 is a deficient number, since it is larger than the sum of its proper divisors (10475503).

555198797 is a wasteful number, since it uses less digits than its factorization.

555198797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10475502.

The product of its digits is 3969000, while the sum is 56.

The square root of 555198797 is about 23562.6568323693. The cubic root of 555198797 is about 821.8946853116.

The spelling of 555198797 in words is "five hundred fifty-five million, one hundred ninety-eight thousand, seven hundred ninety-seven".