30530529 has 6 divisors (see below), whose sum is σ = 44099666. Its totient is φ = 20353680.

The previous prime is 30530519. The next prime is 30530543. The reversal of 30530529 is 92503503.

It can be written as a sum of positive squares in only one way, i.e., 24770529 + 5760000 = 4977^2 + 2400^2 .

It is not a de Polignac number, because 30530529 - 2²³ = 22141921 is a prime.

It is a super-2 number, since 2×30530529² = 1864226402039682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30530519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1696132 + ... + 1696149.

Almost surely, 2^30530529 is an apocalyptic number.

It is an amenable number.

30530529 is a deficient number, since it is larger than the sum of its proper divisors (13569137).

30530529 is a wasteful number, since it uses less digits than its factorization.

30530529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392287 (or 3392284 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 30530529 is about 5525.4437830820. The cubic root of 30530529 is about 312.5441994016.

The spelling of 30530529 in words is "thirty million, five hundred thirty thousand, five hundred twenty-nine".