549554997 has 16 divisors (see below), whose sum is σ = 737008128. Its totient is φ = 364243440.

The previous prime is 549554977. The next prime is 549555029. The reversal of 549554997 is 799455945.

It is not a de Polignac number, because 549554997 - 2¹² = 549550901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549554947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558568 + ... + 559550.

It is an arithmetic number, because the mean of its divisors is an integer number (46063008).

Almost surely, 2^549554997 is an apocalyptic number.

It is an amenable number.

549554997 is a deficient number, since it is larger than the sum of its proper divisors (187453131).

549554997 is a wasteful number, since it uses less digits than its factorization.

549554997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880.

The product of its digits is 10206000, while the sum is 57.

The square root of 549554997 is about 23442.5893834278. The cubic root of 549554997 is about 819.1002410250.

The spelling of 549554997 in words is "five hundred forty-nine million, five hundred fifty-four thousand, nine hundred ninety-seven".