549450555 has 16 divisors (see below), whose sum is σ = 902881824. Its totient is φ = 285120000.

The previous prime is 549450527. The next prime is 549450563. The reversal of 549450555 is 555054945.

It is not a de Polignac number, because 549450555 - 2⁶ = 549450491 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494446 + ... + 495555.

It is an arithmetic number, because the mean of its divisors is an integer number (56430114).

Almost surely, 2^549450555 is an apocalyptic number.

549450555 is a deficient number, since it is larger than the sum of its proper divisors (353431269).

549450555 is a wasteful number, since it uses less digits than its factorization.

549450555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990046.

The product of its (nonzero) digits is 450000, while the sum is 42.

The square root of 549450555 is about 23440.3616652986. The cubic root of 549450555 is about 819.0483481978.

The spelling of 549450555 in words is "five hundred forty-nine million, four hundred fifty thousand, five hundred fifty-five".