19505053 has 8 divisors (see below), whose sum is σ = 20063736. Its totient is φ = 18950400.

The previous prime is 19505033. The next prime is 19505117. The reversal of 19505053 is 35050591.

It can be written as a sum of positive squares in 4 ways, for example, as 381924 + 19123129 = 618^2 + 4373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19505053 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 (19505033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10675 + ... + 12367.

It is an arithmetic number, because the mean of its divisors is an integer number (2507967).

Almost surely, 2^19505053 is an apocalyptic number.

It is an amenable number.

19505053 is a deficient number, since it is larger than the sum of its proper divisors (558683).

19505053 is a wasteful number, since it uses less digits than its factorization.

19505053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 19505053 is about 4416.4525356897. The cubic root of 19505053 is about 269.1838776335.

The spelling of 19505053 in words is "nineteen million, five hundred five thousand, fifty-three".