19530053 has 4 divisors (see below), whose sum is σ = 19591980. Its totient is φ = 19468128.

The previous prime is 19530047. The next prime is 19530073. The reversal of 19530053 is 35003591.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1399489 + 18130564 = 1183^2 + 4258^2 .

It is a cyclic number.

It is not a de Polignac number, because 19530053 - 2⁴ = 19530037 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 (19530073) 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, 30488 + ... + 31121.

It is an arithmetic number, because the mean of its divisors is an integer number (4897995).

Almost surely, 2^19530053 is an apocalyptic number.

It is an amenable number.

19530053 is a deficient number, since it is larger than the sum of its proper divisors (61927).

19530053 is an equidigital number, since it uses as much as digits as its factorization.

19530053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61926.

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

The square root of 19530053 is about 4419.2819552502. The cubic root of 19530053 is about 269.2988345772.

The spelling of 19530053 in words is "nineteen million, five hundred thirty thousand, fifty-three".