528090457 has 2 divisors, whose sum is σ = 528090458. Its totient is φ = 528090456.

The previous prime is 528090391. The next prime is 528090473. The reversal of 528090457 is 754090825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361912576 + 166177881 = 19024^2 + 12891^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-528090457 is a prime.

It is not a weakly prime, because it can be changed into another prime (528060457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264045228 + 264045229.

It is an arithmetic number, because the mean of its divisors is an integer number (264045229).

Almost surely, 2^528090457 is an apocalyptic number.

It is an amenable number.

528090457 is a deficient number, since it is larger than the sum of its proper divisors (1).

528090457 is an equidigital number, since it uses as much as digits as its factorization.

528090457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 528090457 is about 22980.2188196718. The cubic root of 528090457 is about 808.2941578586.

The spelling of 528090457 in words is "five hundred twenty-eight million, ninety thousand, four hundred fifty-seven".