545555240 has 16 divisors (see below), whose sum is σ = 1227499380. Its totient is φ = 218222080.

The previous prime is 545555209. The next prime is 545555243. The reversal of 545555240 is 42555545.

It can be written as a sum of positive squares in 2 ways, for example, as 545409316 + 145924 = 23354^2 + 382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 545555240.

It is not an unprimeable number, because it can be changed into a prime (545555243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6819401 + ... + 6819480.

Almost surely, 2^545555240 is an apocalyptic number.

It is an amenable number.

545555240 is an abundant number, since it is smaller than the sum of its proper divisors (681944140).

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

545555240 is a wasteful number, since it uses less digits than its factorization.

545555240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13638892 (or 13638888 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 35.

The square root of 545555240 is about 23357.1239667901. The cubic root of 545555240 is about 817.1082156640.

It can be divided in two parts, 54555 and 5240, that added together give a palindrome (59795).

The spelling of 545555240 in words is "five hundred forty-five million, five hundred fifty-five thousand, two hundred forty".