528020957 has 2 divisors, whose sum is σ = 528020958. Its totient is φ = 528020956.

The previous prime is 528020947. The next prime is 528020971. The reversal of 528020957 is 759020825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396368281 + 131652676 = 19909^2 + 11474^2 .

It is a cyclic number.

It is not a de Polignac number, because 528020957 - 2¹² = 528016861 is a prime.

It is a super-2 number, since 2×528020957² = 557612262062391698, 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 528020957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528020947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264010478 + 264010479.

It is an arithmetic number, because the mean of its divisors is an integer number (264010479).

Almost surely, 2^528020957 is an apocalyptic number.

It is an amenable number.

528020957 is a deficient number, since it is larger than the sum of its proper divisors (1).

528020957 is an equidigital number, since it uses as much as digits as its factorization.

528020957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 528020957 is about 22978.7065998067. The cubic root of 528020957 is about 808.2586974510.

The spelling of 528020957 in words is "five hundred twenty-eight million, twenty thousand, nine hundred fifty-seven".