528378541 has 2 divisors, whose sum is σ = 528378542. Its totient is φ = 528378540.

The previous prime is 528378509. The next prime is 528378551. The reversal of 528378541 is 145873825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 517790025 + 10588516 = 22755^2 + 3254^2 .

It is a cyclic number.

It is not a de Polignac number, because 528378541 - 2⁵ = 528378509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528378551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264189270 + 264189271.

It is an arithmetic number, because the mean of its divisors is an integer number (264189271).

Almost surely, 2^528378541 is an apocalyptic number.

It is an amenable number.

528378541 is a deficient number, since it is larger than the sum of its proper divisors (1).

528378541 is an equidigital number, since it uses as much as digits as its factorization.

528378541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 43.

The square root of 528378541 is about 22986.4860515913. The cubic root of 528378541 is about 808.4411113974.

The spelling of 528378541 in words is "five hundred twenty-eight million, three hundred seventy-eight thousand, five hundred forty-one".