30503052 has 36 divisors (see below), whose sum is σ = 77280840. Its totient is φ = 10144512.

The previous prime is 30503021. The next prime is 30503063. The reversal of 30503052 is 25030503.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23599 + ... + 24857.

It is an arithmetic number, because the mean of its divisors is an integer number (2146690).

Almost surely, 2^30503052 is an apocalyptic number.

It is an amenable number.

30503052 is an abundant number, since it is smaller than the sum of its proper divisors (46777788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30503052 is a wasteful number, since it uses less digits than its factorization.

30503052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942 (or 1937 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 30503052 is about 5522.9568167785. The cubic root of 30503052 is about 312.4504096243.

Adding to 30503052 its reverse (25030503), we get a palindrome (55533555).

The spelling of 30503052 in words is "thirty million, five hundred three thousand, fifty-two".