30504053 has 4 divisors (see below), whose sum is σ = 30686880. Its totient is φ = 30321228.

The previous prime is 30504043. The next prime is 30504079. The reversal of 30504053 is 35040503.

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 30504053 - 2⁶ = 30503989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30504013) 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, 91163 + ... + 91496.

It is an arithmetic number, because the mean of its divisors is an integer number (7671720).

Almost surely, 2^30504053 is an apocalyptic number.

It is an amenable number.

30504053 is a deficient number, since it is larger than the sum of its proper divisors (182827).

30504053 is a wasteful number, since it uses less digits than its factorization.

30504053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182826.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 30504053 is about 5523.0474377829. The cubic root of 30504053 is about 312.4538274182.

Adding to 30504053 its reverse (35040503), we get a palindrome (65544556).

The spelling of 30504053 in words is "thirty million, five hundred four thousand, fifty-three".