30500553 has 12 divisors (see below), whose sum is σ = 42514640. Its totient is φ = 19448616.

The previous prime is 30500551. The next prime is 30500563. The reversal of 30500553 is 35500503.

It is not a de Polignac number, because 30500553 - 2¹ = 30500551 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30500551) 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 11 ways as a sum of consecutive naturals, for example, 8023 + ... + 11196.

Almost surely, 2^30500553 is an apocalyptic number.

It is an amenable number.

30500553 is a deficient number, since it is larger than the sum of its proper divisors (12014087).

30500553 is a wasteful number, since it uses less digits than its factorization.

30500553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19268 (or 19245 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 21.

The square root of 30500553 is about 5522.7305746343. The cubic root of 30500553 is about 312.4418767634.

The spelling of 30500553 in words is "thirty million, five hundred thousand, five hundred fifty-three".