545411538 has 48 divisors (see below), whose sum is σ = 1356563520. Its totient is φ = 155137248.

The previous prime is 545411519. The next prime is 545411593. The reversal of 545411538 is 835114545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19068 + ... + 38136.

It is an arithmetic number, because the mean of its divisors is an integer number (28261740).

Almost surely, 2^545411538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545411538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (678281760).

545411538 is an abundant number, since it is smaller than the sum of its proper divisors (811151982).

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

545411538 is a wasteful number, since it uses less digits than its factorization.

545411538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19311 (or 19308 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 545411538 is about 23354.0475721019. The cubic root of 545411538 is about 817.0364658897.

The spelling of 545411538 in words is "five hundred forty-five million, four hundred eleven thousand, five hundred thirty-eight".