530021451 has 4 divisors (see below), whose sum is σ = 706695272. Its totient is φ = 353347632.

The previous prime is 530021431. The next prime is 530021561. The reversal of 530021451 is 154120035.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 530021451 - 2¹³ = 530013259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530021431) 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 3 ways as a sum of consecutive naturals, for example, 88336906 + ... + 88336911.

It is an arithmetic number, because the mean of its divisors is an integer number (176673818).

Almost surely, 2^530021451 is an apocalyptic number.

530021451 is a deficient number, since it is larger than the sum of its proper divisors (176673821).

530021451 is a wasteful number, since it uses less digits than its factorization.

530021451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176673820.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 530021451 is about 23022.1947476777. The cubic root of 530021451 is about 809.2781512914.

Adding to 530021451 its reverse (154120035), we get a palindrome (684141486).

The spelling of 530021451 in words is "five hundred thirty million, twenty-one thousand, four hundred fifty-one".