30053519 has 4 divisors (see below), whose sum is σ = 30476880. Its totient is φ = 29630160.

The previous prime is 30053489. The next prime is 30053531. The reversal of 30053519 is 91535003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30053519 is a prime.

It is a super-2 number, since 2×30053519² = 1806428008566722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30053549) 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 3 ways as a sum of consecutive naturals, for example, 211574 + ... + 211715.

It is an arithmetic number, because the mean of its divisors is an integer number (7619220).

Almost surely, 2^30053519 is an apocalyptic number.

30053519 is a deficient number, since it is larger than the sum of its proper divisors (423361).

30053519 is an equidigital number, since it uses as much as digits as its factorization.

30053519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423360.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 30053519 is about 5482.1089919847. The cubic root of 30053519 is about 310.9079141349.

The spelling of 30053519 in words is "thirty million, fifty-three thousand, five hundred nineteen".