19517053 has 2 divisors, whose sum is σ = 19517054. Its totient is φ = 19517052.

The previous prime is 19517051. The next prime is 19517059. The reversal of 19517053 is 35071591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15031129 + 4485924 = 3877^2 + 2118^2 .

It is a cyclic number.

It is not a de Polignac number, because 19517053 - 2¹ = 19517051 is a prime.

Together with 19517051, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19517051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9758526 + 9758527.

It is an arithmetic number, because the mean of its divisors is an integer number (9758527).

Almost surely, 2^19517053 is an apocalyptic number.

It is an amenable number.

19517053 is a deficient number, since it is larger than the sum of its proper divisors (1).

19517053 is an equidigital number, since it uses as much as digits as its factorization.

19517053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 19517053 is about 4417.8108832316. The cubic root of 19517053 is about 269.2390692177.

The spelling of 19517053 in words is "nineteen million, five hundred seventeen thousand, fifty-three".