30500505 has 24 divisors (see below), whose sum is σ = 60420672. Its totient is φ = 13942944.

The previous prime is 30500501. The next prime is 30500521. The reversal of 30500505 is 50500503.

It is not a de Polignac number, because 30500505 - 2² = 30500501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30500501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48099 + ... + 48728.

It is an arithmetic number, because the mean of its divisors is an integer number (2517528).

Almost surely, 2^30500505 is an apocalyptic number.

30500505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30500505 is a deficient number, since it is larger than the sum of its proper divisors (29920167).

30500505 is a wasteful number, since it uses less digits than its factorization.

30500505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96845 (or 96842 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 18.

The square root of 30500505 is about 5522.7262289561. The cubic root of 30500505 is about 312.4417128624.

The spelling of 30500505 in words is "thirty million, five hundred thousand, five hundred five".