530200421 has 2 divisors, whose sum is σ = 530200422. Its totient is φ = 530200420.

The previous prime is 530200399. The next prime is 530200457. The reversal of 530200421 is 124002035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 527207521 + 2992900 = 22961^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 530200421 - 2⁶ = 530200357 is a prime.

It is a super-2 number, since 2×530200421² = 562224972857154482, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 530200421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530200921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265100210 + 265100211.

It is an arithmetic number, because the mean of its divisors is an integer number (265100211).

Almost surely, 2^530200421 is an apocalyptic number.

It is an amenable number.

530200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

530200421 is an equidigital number, since it uses as much as digits as its factorization.

530200421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 530200421 is about 23026.0813209717. The cubic root of 530200421 is about 809.3692294993.

Adding to 530200421 its reverse (124002035), we get a palindrome (654202456).

The spelling of 530200421 in words is "five hundred thirty million, two hundred thousand, four hundred twenty-one".