530721622 has 4 divisors (see below), whose sum is σ = 796082436. Its totient is φ = 265360810.

The previous prime is 530721617. The next prime is 530721637. The reversal of 530721622 is 226127035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 226127035 = 5 ⋅45225407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132680404 + ... + 132680407.

It is an arithmetic number, because the mean of its divisors is an integer number (199020609).

Almost surely, 2^530721622 is an apocalyptic number.

530721622 is a deficient number, since it is larger than the sum of its proper divisors (265360814).

530721622 is a wasteful number, since it uses less digits than its factorization.

530721622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265360813.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 530721622 is about 23037.3961636293. The cubic root of 530721622 is about 809.6343530781.

Adding to 530721622 its reverse (226127035), we get a palindrome (756848657).

The spelling of 530721622 in words is "five hundred thirty million, seven hundred twenty-one thousand, six hundred twenty-two".