530403491 has 2 divisors, whose sum is σ = 530403492. Its totient is φ = 530403490.

The previous prime is 530403439. The next prime is 530403499. The reversal of 530403491 is 194304035.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 530403491 - 2¹⁸ = 530141347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (530403499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265201745 + 265201746.

It is an arithmetic number, because the mean of its divisors is an integer number (265201746).

Almost surely, 2^530403491 is an apocalyptic number.

530403491 is a deficient number, since it is larger than the sum of its proper divisors (1).

530403491 is an equidigital number, since it uses as much as digits as its factorization.

530403491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 530403491 is about 23030.4904637309. The cubic root of 530403491 is about 809.4725474296.

The spelling of 530403491 in words is "five hundred thirty million, four hundred three thousand, four hundred ninety-one".