30250505 has 8 divisors (see below), whose sum is σ = 36640512. Its totient is φ = 23973808.

The previous prime is 30250499. The next prime is 30250529. The reversal of 30250505 is 50505203.

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

It is a cyclic number.

It is not a de Polignac number, because 30250505 - 2⁸ = 30250249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27737 + ... + 28806.

It is an arithmetic number, because the mean of its divisors is an integer number (4580064).

Almost surely, 2^30250505 is an apocalyptic number.

It is an amenable number.

30250505 is a deficient number, since it is larger than the sum of its proper divisors (6390007).

30250505 is a wasteful number, since it uses less digits than its factorization.

30250505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56655.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 30250505 is about 5500.0459088993. The cubic root of 30250505 is about 311.5857180922.

Adding to 30250505 its reverse (50505203), we get a palindrome (80755708).

The spelling of 30250505 in words is "thirty million, two hundred fifty thousand, five hundred five".