30503053 has 4 divisors (see below), whose sum is σ = 34860640. Its totient is φ = 26145468.

The previous prime is 30503021. The next prime is 30503063. The reversal of 30503053 is 35030503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30503053 - 2⁵ = 30503021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30503053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30503063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178783 + ... + 2178796.

It is an arithmetic number, because the mean of its divisors is an integer number (8715160).

Almost surely, 2^30503053 is an apocalyptic number.

It is an amenable number.

30503053 is a deficient number, since it is larger than the sum of its proper divisors (4357587).

30503053 is an equidigital number, since it uses as much as digits as its factorization.

30503053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4357586.

The product of its (nonzero) digits is 675, while the sum is 19.

The square root of 30503053 is about 5522.9569073097. The cubic root of 30503053 is about 312.4504130387.

Adding to 30503053 its reverse (35030503), we get a palindrome (65533556).

The spelling of 30503053 in words is "thirty million, five hundred three thousand, fifty-three".