549855601 has 9 divisors (see below), whose sum is σ = 557197753. Its totient is φ = 542609860.

The previous prime is 549855583. The next prime is 549855619. The reversal of 549855601 is 106558945.

The square root of 549855601 is 23449.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (549855583) and next prime (549855619).

It is not a de Polignac number, because 549855601 - 2²³ = 541466993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549855671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3071730 + ... + 3071908.

Almost surely, 2^549855601 is an apocalyptic number.

549855601 is the 23449-th square number.

549855601 is the 11725-th centered octagonal number.

It is an amenable number.

549855601 is a deficient number, since it is larger than the sum of its proper divisors (7342152).

549855601 is an frugal number, since it uses more digits than its factorization.

549855601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 43.

The cubic root of 549855601 is about 819.2495617961.

The spelling of 549855601 in words is "five hundred forty-nine million, eight hundred fifty-five thousand, six hundred one".