549535057220 has 24 divisors (see below), whose sum is σ = 1178577316224. Its totient is φ = 215137128416.

The previous prime is 549535057207. The next prime is 549535057223. The reversal of 549535057220 is 22750535945.

It is a happy number.

It is a super-2 number, since 2×549535057220² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (549535057223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292304942 + ... + 292306821.

It is an arithmetic number, because the mean of its divisors is an integer number (49107388176).

Almost surely, 2^549535057220 is an apocalyptic number.

It is an amenable number.

549535057220 is an abundant number, since it is smaller than the sum of its proper divisors (629042259004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549535057220 is a wasteful number, since it uses less digits than its factorization.

549535057220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584611819 (or 584611817 counting only the distinct ones).

The product of its (nonzero) digits is 1890000, while the sum is 47.

The spelling of 549535057220 in words is "five hundred forty-nine billion, five hundred thirty-five million, fifty-seven thousand, two hundred twenty".