545620020 has 48 divisors (see below), whose sum is σ = 1666623168. Its totient is φ = 132271360.

The previous prime is 545620013. The next prime is 545620037. The reversal of 545620020 is 20026545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412689 + ... + 414008.

It is an arithmetic number, because the mean of its divisors is an integer number (34721316).

Almost surely, 2^545620020 is an apocalyptic number.

It is an amenable number.

545620020 is an abundant number, since it is smaller than the sum of its proper divisors (1121003148).

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

545620020 is a wasteful number, since it uses less digits than its factorization.

545620020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826720 (or 826718 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 545620020 is about 23358.5106545773. The cubic root of 545620020 is about 817.1405559120.

Adding to 545620020 its reverse (20026545), we get a palindrome (565646565).

The spelling of 545620020 in words is "five hundred forty-five million, six hundred twenty thousand, twenty".