30660506 has 4 divisors (see below), whose sum is σ = 45990762. Its totient is φ = 15330252.

The previous prime is 30660499. The next prime is 30660551. The reversal of 30660506 is 60506603.

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

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 1229881 = 5425^2 + 1109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7665125 + ... + 7665128.

Almost surely, 2^30660506 is an apocalyptic number.

30660506 is a deficient number, since it is larger than the sum of its proper divisors (15330256).

30660506 is a wasteful number, since it uses less digits than its factorization.

30660506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330255.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 30660506 is about 5537.1929711723. The cubic root of 30660506 is about 312.9871008304.

The spelling of 30660506 in words is "thirty million, six hundred sixty thousand, five hundred six".