549749505 has 32 divisors (see below), whose sum is σ = 911167488. Its totient is φ = 282744000.

The previous prime is 549749503. The next prime is 549749509. The reversal of 549749505 is 505947945.

It is not a de Polignac number, because 549749505 - 2¹ = 549749503 is a prime.

It is a super-3 number, since 3×549749505³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (549749503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140830 + ... + 144680.

It is an arithmetic number, because the mean of its divisors is an integer number (28473984).

Almost surely, 2^549749505 is an apocalyptic number.

It is an amenable number.

549749505 is a deficient number, since it is larger than the sum of its proper divisors (361417983).

549749505 is a wasteful number, since it uses less digits than its factorization.

549749505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The square root of 549749505 is about 23446.7376195495. The cubic root of 549749505 is about 819.1968663294.

The spelling of 549749505 in words is "five hundred forty-nine million, seven hundred forty-nine thousand, five hundred five".