527264021 has 2 divisors, whose sum is σ = 527264022. Its totient is φ = 527264020.

The previous prime is 527263973. The next prime is 527264039. The reversal of 527264021 is 120462725.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 398441521 + 128822500 = 19961^2 + 11350^2 .

It is a cyclic number.

It is not a de Polignac number, because 527264021 - 2¹⁸ = 527001877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (527264821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263632010 + 263632011.

It is an arithmetic number, because the mean of its divisors is an integer number (263632011).

Almost surely, 2^527264021 is an apocalyptic number.

It is an amenable number.

527264021 is a deficient number, since it is larger than the sum of its proper divisors (1).

527264021 is an equidigital number, since it uses as much as digits as its factorization.

527264021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 527264021 is about 22962.2303141485. The cubic root of 527264021 is about 807.8722906391.

The spelling of 527264021 in words is "five hundred twenty-seven million, two hundred sixty-four thousand, twenty-one".