530021657 has 16 divisors (see below), whose sum is σ = 590369472. Its totient is φ = 471789120.

The previous prime is 530021647. The next prime is 530021669. The reversal of 530021657 is 756120035.

It is not a de Polignac number, because 530021657 - 2⁶ = 530021593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (530021647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125423 + ... + 129579.

It is an arithmetic number, because the mean of its divisors is an integer number (36898092).

Almost surely, 2^530021657 is an apocalyptic number.

It is an amenable number.

530021657 is a deficient number, since it is larger than the sum of its proper divisors (60347815).

530021657 is a wasteful number, since it uses less digits than its factorization.

530021657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4408.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 530021657 is about 23022.1992216209. The cubic root of 530021657 is about 809.2782561370.

The spelling of 530021657 in words is "five hundred thirty million, twenty-one thousand, six hundred fifty-seven".