545328877 has 2 divisors, whose sum is σ = 545328878. Its totient is φ = 545328876.

The previous prime is 545328869. The next prime is 545328913. The reversal of 545328877 is 778823545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501491236 + 43837641 = 22394^2 + 6621^2 .

It is a cyclic number.

It is not a de Polignac number, because 545328877 - 2³ = 545328869 is a prime.

It is a super-2 number, since 2×545328877² = 594767168180162258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545328877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545325877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272664438 + 272664439.

It is an arithmetic number, because the mean of its divisors is an integer number (272664439).

Almost surely, 2^545328877 is an apocalyptic number.

It is an amenable number.

545328877 is a deficient number, since it is larger than the sum of its proper divisors (1).

545328877 is an equidigital number, since it uses as much as digits as its factorization.

545328877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881600, while the sum is 49.

The square root of 545328877 is about 23352.2777689886. The cubic root of 545328877 is about 816.9951879073.

The spelling of 545328877 in words is "five hundred forty-five million, three hundred twenty-eight thousand, eight hundred seventy-seven".