549152538 has 32 divisors (see below), whose sum is σ = 1236805632. Its totient is φ = 161041200.

The previous prime is 549152537. The next prime is 549152587. The reversal of 549152538 is 835251945.

549152538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 549152538.

It is not an unprimeable number, because it can be changed into a prime (549152537) 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, 132156 + ... + 136247.

It is an arithmetic number, because the mean of its divisors is an integer number (38650176).

Almost surely, 2^549152538 is an apocalyptic number.

549152538 is an abundant number, since it is smaller than the sum of its proper divisors (687653094).

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

549152538 is a wasteful number, since it uses less digits than its factorization.

549152538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268450.

The product of its digits is 216000, while the sum is 42.

The square root of 549152538 is about 23434.0038832462. The cubic root of 549152538 is about 818.9002399507.

The spelling of 549152538 in words is "five hundred forty-nine million, one hundred fifty-two thousand, five hundred thirty-eight".