30530517 has 8 divisors (see below), whose sum is σ = 40792896. Its totient is φ = 20310912.

The previous prime is 30530503. The next prime is 30530519. The reversal of 30530517 is 71503503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30530517 - 2⁴ = 30530501 is a prime.

It is a super-2 number, since 2×30530517² = 1864224936574578, which contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 8988 + ... + 11909.

It is an arithmetic number, because the mean of its divisors is an integer number (5099112).

Almost surely, 2^30530517 is an apocalyptic number.

It is an amenable number.

30530517 is a deficient number, since it is larger than the sum of its proper divisors (10262379).

30530517 is a wasteful number, since it uses less digits than its factorization.

30530517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21387.

The product of its (nonzero) digits is 1575, while the sum is 24.

The square root of 30530517 is about 5525.4426971963. The cubic root of 30530517 is about 312.5441584531.

The spelling of 30530517 in words is "thirty million, five hundred thirty thousand, five hundred seventeen".