545012020 has 24 divisors (see below), whose sum is σ = 1308029184. Its totient is φ = 186861216.

The previous prime is 545012009. The next prime is 545012053. The reversal of 545012020 is 20210545.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1946332 + ... + 1946611.

It is an arithmetic number, because the mean of its divisors is an integer number (54501216).

Almost surely, 2^545012020 is an apocalyptic number.

It is an amenable number.

545012020 is an abundant number, since it is smaller than the sum of its proper divisors (763017164).

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

545012020 is a wasteful number, since it uses less digits than its factorization.

545012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892959 (or 3892957 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 545012020 is about 23345.4924985531. The cubic root of 545012020 is about 816.8369220673.

Subtracting from 545012020 its product of nonzero digits (400), we obtain a triangular number (545011620 = T₃₃₀₁₅).

Adding to 545012020 its reverse (20210545), we get a palindrome (565222565).

The spelling of 545012020 in words is "five hundred forty-five million, twelve thousand, twenty".